(function (f) { if (typeof exports === 'object' && typeof module !== 'undefined') { module.exports = f() } else if (typeof define === 'function' && define.amd) { define([], f) } else { var g; if (typeof window !== 'undefined') { g = window } else if (typeof global !== 'undefined') { g = global } else if (typeof self !== 'undefined') { g = self } else { g = this }g.Hls = f() } })(function () {
  var define, module, exports; return (function e (t, n, r) { function s (o, u) { if (!n[o]) { if (!t[o]) { var a = typeof require === 'function' && require; if (!u && a) return a(o, !0); if (i) return i(o, !0); var f = new Error("Cannot find module '" + o + "'"); throw f.code = 'MODULE_NOT_FOUND', f } var l = n[o] = { exports: {} }; t[o][0].call(l.exports, function (e) { var n = t[o][1][e]; return s(n || e) }, l, l.exports, e, t, n, r) } return n[o].exports } var i = typeof require === 'function' && require; for (var o = 0; o < r.length; o++)s(r[o]); return s })({
    1: [function (_dereq_, module, exports) {
    // Copyright Joyent, Inc. and other Node contributors.
    //
    // Permission is hereby granted, free of charge, to any person obtaining a
    // copy of this software and associated documentation files (the
    // "Software"), to deal in the Software without restriction, including
    // without limitation the rights to use, copy, modify, merge, publish,
    // distribute, sublicense, and/or sell copies of the Software, and to permit
    // persons to whom the Software is furnished to do so, subject to the
    // following conditions:
    //
    // The above copyright notice and this permission notice shall be included
    // in all copies or substantial portions of the Software.
    //
    // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
    // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
    // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
    // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
    // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
    // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
    // USE OR OTHER DEALINGS IN THE SOFTWARE.

      function EventEmitter () {
        this._events = this._events || {}
        this._maxListeners = this._maxListeners || undefined
      }
      module.exports = EventEmitter

      // Backwards-compat with node 0.10.x
      EventEmitter.EventEmitter = EventEmitter

      EventEmitter.prototype._events = undefined
      EventEmitter.prototype._maxListeners = undefined

      // By default EventEmitters will print a warning if more than 10 listeners are
      // added to it. This is a useful default which helps finding memory leaks.
      EventEmitter.defaultMaxListeners = 10

      // Obviously not all Emitters should be limited to 10. This function allows
      // that to be increased. Set to zero for unlimited.
      EventEmitter.prototype.setMaxListeners = function (n) {
        if (!isNumber(n) || n < 0 || isNaN(n)) { throw TypeError('n must be a positive number') }
        this._maxListeners = n
        return this
      }

      EventEmitter.prototype.emit = function (type) {
        var er, handler, len, args, i, listeners

        if (!this._events) { this._events = {} }

        // If there is no 'error' event listener then throw.
        if (type === 'error') {
          if (!this._events.error ||
        (isObject(this._events.error) && !this._events.error.length)) {
            er = arguments[1]
            if (er instanceof Error) {
              throw er // Unhandled 'error' event
            } else {
            // At least give some kind of context to the user
              var err = new Error('Uncaught, unspecified "error" event. (' + er + ')')
              err.context = er
              throw err
            }
          }
        }

        handler = this._events[type]

        if (isUndefined(handler)) { return false }

        if (isFunction(handler)) {
          switch (arguments.length) {
          // fast cases
            case 1:
              handler.call(this)
              break
            case 2:
              handler.call(this, arguments[1])
              break
            case 3:
              handler.call(this, arguments[1], arguments[2])
              break
              // slower
            default:
              args = Array.prototype.slice.call(arguments, 1)
              handler.apply(this, args)
          }
        } else if (isObject(handler)) {
          args = Array.prototype.slice.call(arguments, 1)
          listeners = handler.slice()
          len = listeners.length
          for (i = 0; i < len; i++) { listeners[i].apply(this, args) }
        }

        return true
      }

      EventEmitter.prototype.addListener = function (type, listener) {
        var m

        if (!isFunction(listener)) { throw TypeError('listener must be a function') }

        if (!this._events) { this._events = {} }

        // To avoid recursion in the case that type === "newListener"! Before
        // adding it to the listeners, first emit "newListener".
        if (this._events.newListener) {
          this.emit('newListener', type,
            isFunction(listener.listener)
              ? listener.listener : listener)
        }

        if (!this._events[type])
        // Optimize the case of one listener. Don't need the extra array object.
        { this._events[type] = listener } else if (isObject(this._events[type]))
        // If we've already got an array, just append.
        { this._events[type].push(listener) } else
        // Adding the second element, need to change to array.
        { this._events[type] = [this._events[type], listener] }

        // Check for listener leak
        if (isObject(this._events[type]) && !this._events[type].warned) {
          if (!isUndefined(this._maxListeners)) {
            m = this._maxListeners
          } else {
            m = EventEmitter.defaultMaxListeners
          }

          if (m && m > 0 && this._events[type].length > m) {
            this._events[type].warned = true
            console.error('(node) warning: possible EventEmitter memory ' +
                    'leak detected. %d listeners added. ' +
                    'Use emitter.setMaxListeners() to increase limit.',
            this._events[type].length)
            if (typeof console.trace === 'function') {
            // not supported in IE 10
              console.trace()
            }
          }
        }

        return this
      }

      EventEmitter.prototype.on = EventEmitter.prototype.addListener

      EventEmitter.prototype.once = function (type, listener) {
        if (!isFunction(listener)) { throw TypeError('listener must be a function') }

        var fired = false

        function g () {
          this.removeListener(type, g)

          if (!fired) {
            fired = true
            listener.apply(this, arguments)
          }
        }

        g.listener = listener
        this.on(type, g)

        return this
      }

      // emits a 'removeListener' event iff the listener was removed
      EventEmitter.prototype.removeListener = function (type, listener) {
        var list, position, length, i

        if (!isFunction(listener)) { throw TypeError('listener must be a function') }

        if (!this._events || !this._events[type]) { return this }

        list = this._events[type]
        length = list.length
        position = -1

        if (list === listener ||
      (isFunction(list.listener) && list.listener === listener)) {
          delete this._events[type]
          if (this._events.removeListener) { this.emit('removeListener', type, listener) }
        } else if (isObject(list)) {
          for (i = length; i-- > 0;) {
            if (list[i] === listener ||
          (list[i].listener && list[i].listener === listener)) {
              position = i
              break
            }
          }

          if (position < 0) { return this }

          if (list.length === 1) {
            list.length = 0
            delete this._events[type]
          } else {
            list.splice(position, 1)
          }

          if (this._events.removeListener) { this.emit('removeListener', type, listener) }
        }

        return this
      }

      EventEmitter.prototype.removeAllListeners = function (type) {
        var key, listeners

        if (!this._events) { return this }

        // not listening for removeListener, no need to emit
        if (!this._events.removeListener) {
          if (arguments.length === 0) { this._events = {} } else if (this._events[type]) { delete this._events[type] }
          return this
        }

        // emit removeListener for all listeners on all events
        if (arguments.length === 0) {
          for (key in this._events) {
            if (key === 'removeListener') continue
            this.removeAllListeners(key)
          }
          this.removeAllListeners('removeListener')
          this._events = {}
          return this
        }

        listeners = this._events[type]

        if (isFunction(listeners)) {
          this.removeListener(type, listeners)
        } else if (listeners) {
        // LIFO order
          while (listeners.length) { this.removeListener(type, listeners[listeners.length - 1]) }
        }
        delete this._events[type]

        return this
      }

      EventEmitter.prototype.listeners = function (type) {
        var ret
        if (!this._events || !this._events[type]) { ret = [] } else if (isFunction(this._events[type])) { ret = [this._events[type]] } else { ret = this._events[type].slice() }
        return ret
      }

      EventEmitter.prototype.listenerCount = function (type) {
        if (this._events) {
          var evlistener = this._events[type]

          if (isFunction(evlistener)) { return 1 } else if (evlistener) { return evlistener.length }
        }
        return 0
      }

      EventEmitter.listenerCount = function (emitter, type) {
        return emitter.listenerCount(type)
      }

      function isFunction (arg) {
        return typeof arg === 'function'
      }

      function isNumber (arg) {
        return typeof arg === 'number'
      }

      function isObject (arg) {
        return typeof arg === 'object' && arg !== null
      }

      function isUndefined (arg) {
        return arg === void 0
      }
    }, {}],
    2: [function (_dereq_, module, exports) {
    // see https://tools.ietf.org/html/rfc1808

      /* jshint ignore:start */
      (function (root) {
        /* jshint ignore:end */

        var URL_REGEX = /^((?:[^\/;?#]+:)?)(\/\/[^\/\;?#]*)?(.*?)??(;.*?)?(\?.*?)?(#.*?)?$/
        var FIRST_SEGMENT_REGEX = /^([^\/;?#]*)(.*)$/
        var SLASH_DOT_REGEX = /(?:\/|^)\.(?=\/)/g
        var SLASH_DOT_DOT_REGEX = /(?:\/|^)\.\.\/(?!\.\.\/).*?(?=\/)/g

        var URLToolkit = { // jshint ignore:line
        // If opts.alwaysNormalize is true then the path will always be normalized even when it starts with / or //
        // E.g
        // With opts.alwaysNormalize = false (default, spec compliant)
        // http://a.com/b/cd + /e/f/../g => http://a.com/e/f/../g
        // With opts.alwaysNormalize = true (default, not spec compliant)
        // http://a.com/b/cd + /e/f/../g => http://a.com/e/g
          buildAbsoluteURL: function (baseURL, relativeURL, opts) {
            opts = opts || {}
            // remove any remaining space and CRLF
            baseURL = baseURL.trim()
            relativeURL = relativeURL.trim()
            if (!relativeURL) {
            // 2a) If the embedded URL is entirely empty, it inherits the
            // entire base URL (i.e., is set equal to the base URL)
            // and we are done.
              if (!opts.alwaysNormalize) {
                return baseURL
              }
              var basePartsForNormalise = this.parseURL(baseURL)
              if (!baseParts) {
                throw new Error('Error trying to parse base URL.')
              }
              basePartsForNormalise.path = URLToolkit.normalizePath(basePartsForNormalise.path)
              return URLToolkit.buildURLFromParts(basePartsForNormalise)
            }
            var relativeParts = this.parseURL(relativeURL)
            if (!relativeParts) {
              throw new Error('Error trying to parse relative URL.')
            }
            if (relativeParts.scheme) {
            // 2b) If the embedded URL starts with a scheme name, it is
            // interpreted as an absolute URL and we are done.
              if (!opts.alwaysNormalize) {
                return relativeURL
              }
              relativeParts.path = URLToolkit.normalizePath(relativeParts.path)
              return URLToolkit.buildURLFromParts(relativeParts)
            }
            var baseParts = this.parseURL(baseURL)
            if (!baseParts) {
              throw new Error('Error trying to parse base URL.')
            }
            if (!baseParts.netLoc && baseParts.path && baseParts.path[0] !== '/') {
            // If netLoc missing and path doesn't start with '/', assume everthing before the first '/' is the netLoc
            // This causes 'example.com/a' to be handled as '//example.com/a' instead of '/example.com/a'
              var pathParts = FIRST_SEGMENT_REGEX.exec(baseParts.path)
              baseParts.netLoc = pathParts[1]
              baseParts.path = pathParts[2]
            }
            if (baseParts.netLoc && !baseParts.path) {
              baseParts.path = '/'
            }
            var builtParts = {
            // 2c) Otherwise, the embedded URL inherits the scheme of
            // the base URL.
              scheme: baseParts.scheme,
              netLoc: relativeParts.netLoc,
              path: null,
              params: relativeParts.params,
              query: relativeParts.query,
              fragment: relativeParts.fragment
            }
            if (!relativeParts.netLoc) {
            // 3) If the embedded URL's <net_loc> is non-empty, we skip to
            // Step 7.  Otherwise, the embedded URL inherits the <net_loc>
            // (if any) of the base URL.
              builtParts.netLoc = baseParts.netLoc
              // 4) If the embedded URL path is preceded by a slash "/", the
              // path is not relative and we skip to Step 7.
              if (relativeParts.path[0] !== '/') {
                if (!relativeParts.path) {
                // 5) If the embedded URL path is empty (and not preceded by a
                // slash), then the embedded URL inherits the base URL path
                  builtParts.path = baseParts.path
                  // 5a) if the embedded URL's <params> is non-empty, we skip to
                  // step 7; otherwise, it inherits the <params> of the base
                  // URL (if any) and
                  if (!relativeParts.params) {
                    builtParts.params = baseParts.params
                    // 5b) if the embedded URL's <query> is non-empty, we skip to
                    // step 7; otherwise, it inherits the <query> of the base
                    // URL (if any) and we skip to step 7.
                    if (!relativeParts.query) {
                      builtParts.query = baseParts.query
                    }
                  }
                } else {
                // 6) The last segment of the base URL's path (anything
                // following the rightmost slash "/", or the entire path if no
                // slash is present) is removed and the embedded URL's path is
                // appended in its place.
                  var baseURLPath = baseParts.path
                  var newPath = baseURLPath.substring(0, baseURLPath.lastIndexOf('/') + 1) + relativeParts.path
                  builtParts.path = URLToolkit.normalizePath(newPath)
                }
              }
            }
            if (builtParts.path === null) {
              builtParts.path = opts.alwaysNormalize ? URLToolkit.normalizePath(relativeParts.path) : relativeParts.path
            }
            return URLToolkit.buildURLFromParts(builtParts)
          },
          parseURL: function (url) {
            var parts = URL_REGEX.exec(url)
            if (!parts) {
              return null
            }
            return {
              scheme: parts[1] || '',
              netLoc: parts[2] || '',
              path: parts[3] || '',
              params: parts[4] || '',
              query: parts[5] || '',
              fragment: parts[6] || ''
            }
          },
          normalizePath: function (path) {
          // The following operations are
          // then applied, in order, to the new path:
          // 6a) All occurrences of "./", where "." is a complete path
          // segment, are removed.
          // 6b) If the path ends with "." as a complete path segment,
          // that "." is removed.
            path = path.split('').reverse().join('').replace(SLASH_DOT_REGEX, '')
            // 6c) All occurrences of "<segment>/../", where <segment> is a
            // complete path segment not equal to "..", are removed.
            // Removal of these path segments is performed iteratively,
            // removing the leftmost matching pattern on each iteration,
            // until no matching pattern remains.
            // 6d) If the path ends with "<segment>/..", where <segment> is a
            // complete path segment not equal to "..", that
            // "<segment>/.." is removed.
            while (path.length !== (path = path.replace(SLASH_DOT_DOT_REGEX, '')).length) {} // jshint ignore:line
            return path.split('').reverse().join('')
          },
          buildURLFromParts: function (parts) {
            return parts.scheme + parts.netLoc + parts.path + parts.params + parts.query + parts.fragment
          }
        }

        /* jshint ignore:start */
        if (typeof exports === 'object' && typeof module === 'object') { module.exports = URLToolkit } else if (typeof define === 'function' && define.amd) { define([], function () { return URLToolkit }) } else if (typeof exports === 'object') { exports.URLToolkit = URLToolkit } else { root.URLToolkit = URLToolkit }
      })(this)
    /* jshint ignore:end */
    }, {}],
    3: [function (_dereq_, module, exports) {
      var bundleFn = arguments[3]
      var sources = arguments[4]
      var cache = arguments[5]

      var stringify = JSON.stringify

      module.exports = function (fn, options) {
        var wkey
        var cacheKeys = Object.keys(cache)

        for (var i = 0, l = cacheKeys.length; i < l; i++) {
          var key = cacheKeys[i]
          var exp = cache[key].exports
          // Using babel as a transpiler to use esmodule, the export will always
          // be an object with the default export as a property of it. To ensure
          // the existing api and babel esmodule exports are both supported we
          // check for both
          if (exp === fn || exp && exp.default === fn) {
            wkey = key
            break
          }
        }

        if (!wkey) {
          wkey = Math.floor(Math.pow(16, 8) * Math.random()).toString(16)
          var wcache = {}
          for (var i = 0, l = cacheKeys.length; i < l; i++) {
            var key = cacheKeys[i]
            wcache[key] = key
          }
          sources[wkey] = [
            Function(['require', 'module', 'exports'], '(' + fn + ')(self)'),
            wcache
          ]
        }
        var skey = Math.floor(Math.pow(16, 8) * Math.random()).toString(16)

        var scache = {}; scache[wkey] = wkey
        sources[skey] = [
          Function(['require'], (
            // try to call default if defined to also support babel esmodule
            // exports
            'var f = require(' + stringify(wkey) + ');' +
            '(f.default ? f.default : f)(self);'
          )),
          scache
        ]

        var workerSources = {}
        resolveSources(skey)

        function resolveSources (key) {
          workerSources[key] = true

          for (var depPath in sources[key][1]) {
            var depKey = sources[key][1][depPath]
            if (!workerSources[depKey]) {
              resolveSources(depKey)
            }
          }
        }

        var src = '(' + bundleFn + ')({' +
        Object.keys(workerSources).map(function (key) {
          return stringify(key) + ':[' +
                sources[key][0] +
                ',' + stringify(sources[key][1]) + ']'
        }).join(',') +
        '},{},[' + stringify(skey) + '])'

        var URL = window.URL || window.webkitURL || window.mozURL || window.msURL

        var blob = new Blob([src], { type: 'text/javascript' })
        if (options && options.bare) { return blob }
        var workerUrl = URL.createObjectURL(blob)
        var worker = new Worker(workerUrl)
        worker.objectURL = workerUrl
        return worker
      }
    }, {}],
    4: [function (_dereq_, module, exports) {
    /**
 * HLS config
 */
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })
      exports.hlsDefaultConfig = undefined

      var _abrController = _dereq_(5)

      var _abrController2 = _interopRequireDefault(_abrController)

      var _bufferController = _dereq_(8)

      var _bufferController2 = _interopRequireDefault(_bufferController)

      var _capLevelController = _dereq_(9)

      var _capLevelController2 = _interopRequireDefault(_capLevelController)

      var _fpsController = _dereq_(10)

      var _fpsController2 = _interopRequireDefault(_fpsController)

      var _xhrLoader = _dereq_(55)

      var _xhrLoader2 = _interopRequireDefault(_xhrLoader)

      var _audioTrackController = _dereq_(7)

      var _audioTrackController2 = _interopRequireDefault(_audioTrackController)

      var _audioStreamController = _dereq_(6)

      var _audioStreamController2 = _interopRequireDefault(_audioStreamController)

      var _cues = _dereq_(47)

      var _cues2 = _interopRequireDefault(_cues)

      var _timelineController = _dereq_(15)

      var _timelineController2 = _interopRequireDefault(_timelineController)

      var _subtitleTrackController = _dereq_(14)

      var _subtitleTrackController2 = _interopRequireDefault(_subtitleTrackController)

      var _subtitleStreamController = _dereq_(13)

      var _subtitleStreamController2 = _interopRequireDefault(_subtitleStreamController)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      // #endif

      // #endif

      // #if subtitle

      // import FetchLoader from './utils/fetch-loader';
      // #if altaudio
      var hlsDefaultConfig = exports.hlsDefaultConfig = {
        autoStartLoad: true, // used by stream-controller
        startPosition: -1, // used by stream-controller
        defaultAudioCodec: undefined, // used by stream-controller
        debug: false, // used by logger
        capLevelOnFPSDrop: false, // used by fps-controller
        capLevelToPlayerSize: false, // used by cap-level-controller
        initialLiveManifestSize: 1, // used by stream-controller
        maxBufferLength: 30, // used by stream-controller
        maxBufferSize: 60 * 1000 * 1000, // used by stream-controller
        maxBufferHole: 0.5, // used by stream-controller
        maxSeekHole: 2, // used by stream-controller
        lowBufferWatchdogPeriod: 0.5, // used by stream-controller
        highBufferWatchdogPeriod: 3, // used by stream-controller
        nudgeOffset: 0.1, // used by stream-controller
        nudgeMaxRetry: 3, // used by stream-controller
        maxFragLookUpTolerance: 0.2, // used by stream-controller
        liveSyncDurationCount: 3, // used by stream-controller
        liveMaxLatencyDurationCount: Infinity, // used by stream-controller
        liveSyncDuration: undefined, // used by stream-controller
        liveMaxLatencyDuration: undefined, // used by stream-controller
        maxMaxBufferLength: 600, // used by stream-controller
        enableWorker: true, // used by demuxer
        enableSoftwareAES: true, // used by decrypter
        manifestLoadingTimeOut: 10000, // used by playlist-loader
        manifestLoadingMaxRetry: 1, // used by playlist-loader
        manifestLoadingRetryDelay: 1000, // used by playlist-loader
        manifestLoadingMaxRetryTimeout: 64000, // used by playlist-loader
        startLevel: undefined, // used by level-controller
        levelLoadingTimeOut: 10000, // used by playlist-loader
        levelLoadingMaxRetry: 4, // used by playlist-loader
        levelLoadingRetryDelay: 1000, // used by playlist-loader
        levelLoadingMaxRetryTimeout: 64000, // used by playlist-loader
        fragLoadingTimeOut: 20000, // used by fragment-loader
        fragLoadingMaxRetry: 6, // used by fragment-loader
        fragLoadingRetryDelay: 1000, // used by fragment-loader
        fragLoadingMaxRetryTimeout: 64000, // used by fragment-loader
        fragLoadingLoopThreshold: 3, // used by stream-controller
        startFragPrefetch: false, // used by stream-controller
        fpsDroppedMonitoringPeriod: 5000, // used by fps-controller
        fpsDroppedMonitoringThreshold: 0.2, // used by fps-controller
        appendErrorMaxRetry: 3, // used by buffer-controller
        loader: _xhrLoader2.default,
        // loader: FetchLoader,
        fLoader: undefined,
        pLoader: undefined,
        xhrSetup: undefined,
        fetchSetup: undefined,
        abrController: _abrController2.default,
        bufferController: _bufferController2.default,
        capLevelController: _capLevelController2.default,
        fpsController: _fpsController2.default,
        // #if altaudio
        audioStreamController: _audioStreamController2.default,
        audioTrackController: _audioTrackController2.default,
        // #endif
        // #if subtitle
        subtitleStreamController: _subtitleStreamController2.default,
        subtitleTrackController: _subtitleTrackController2.default,
        timelineController: _timelineController2.default,
        cueHandler: _cues2.default,
        enableCEA708Captions: true, // used by timeline-controller
        enableWebVTT: true, // used by timeline-controller
        captionsTextTrack1Label: 'English', // used by timeline-controller
        captionsTextTrack1LanguageCode: 'en', // used by timeline-controller
        captionsTextTrack2Label: 'Spanish', // used by timeline-controller
        captionsTextTrack2LanguageCode: 'es', // used by timeline-controller
        // #endif
        stretchShortVideoTrack: false, // used by mp4-remuxer
        forceKeyFrameOnDiscontinuity: true, // used by ts-demuxer
        abrEwmaFastLive: 3, // used by abr-controller
        abrEwmaSlowLive: 9, // used by abr-controller
        abrEwmaFastVoD: 3, // used by abr-controller
        abrEwmaSlowVoD: 9, // used by abr-controller
        abrEwmaDefaultEstimate: 5e5, // 500 kbps  // used by abr-controller
        abrBandWidthFactor: 0.95, // used by abr-controller
        abrBandWidthUpFactor: 0.7, // used by abr-controller
        abrMaxWithRealBitrate: false, // used by abr-controller
        maxStarvationDelay: 4, // used by abr-controller
        maxLoadingDelay: 4, // used by abr-controller
        minAutoBitrate: 0 // used by hls
      }
    }, { 10: 10, 13: 13, 14: 14, 15: 15, 47: 47, 5: 5, 55: 55, 6: 6, 7: 7, 8: 8, 9: 9 }],
    5: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _eventHandler = _dereq_(31)

      var _eventHandler2 = _interopRequireDefault(_eventHandler)

      var _bufferHelper = _dereq_(34)

      var _bufferHelper2 = _interopRequireDefault(_bufferHelper)

      var _errors = _dereq_(30)

      var _logger = _dereq_(50)

      var _ewmaBandwidthEstimator = _dereq_(48)

      var _ewmaBandwidthEstimator2 = _interopRequireDefault(_ewmaBandwidthEstimator)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      function _possibleConstructorReturn (self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called") } return call && (typeof call === 'object' || typeof call === 'function') ? call : self }

      function _inherits (subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass) } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass } /*
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * simple ABR Controller
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  - compute next level based on last fragment bw heuristics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *  - implement an abandon rules triggered if we have less than 2 frag buffered and if computed bw shows that we risk buffer stalling
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

      var AbrController = (function (_EventHandler) {
        _inherits(AbrController, _EventHandler)

        function AbrController (hls) {
          _classCallCheck(this, AbrController)

          var _this = _possibleConstructorReturn(this, (AbrController.__proto__ || Object.getPrototypeOf(AbrController)).call(this, hls, _events2.default.FRAG_LOADING, _events2.default.FRAG_LOADED, _events2.default.FRAG_BUFFERED, _events2.default.ERROR))

          _this.lastLoadedFragLevel = 0
          _this._nextAutoLevel = -1
          _this.hls = hls
          _this.onCheck = _this._abandonRulesCheck.bind(_this)
          return _this
        }

        _createClass(AbrController, [{
          key: 'destroy',
          value: function destroy () {
            this.clearTimer()
            _eventHandler2.default.prototype.destroy.call(this)
          }
        }, {
          key: 'onFragLoading',
          value: function onFragLoading (data) {
            var frag = data.frag
            if (frag.type === 'main') {
              if (!this.timer) {
                this.timer = setInterval(this.onCheck, 100)
              }
              // lazy init of bw Estimator, rationale is that we use different params for Live/VoD
              // so we need to wait for stream manifest / playlist type to instantiate it.
              if (!this._bwEstimator) {
                var hls = this.hls
                var level = data.frag.level
                var isLive = hls.levels[level].details.live
                var config = hls.config
                var ewmaFast = void 0
                var ewmaSlow = void 0

                if (isLive) {
                  ewmaFast = config.abrEwmaFastLive
                  ewmaSlow = config.abrEwmaSlowLive
                } else {
                  ewmaFast = config.abrEwmaFastVoD
                  ewmaSlow = config.abrEwmaSlowVoD
                }
                this._bwEstimator = new _ewmaBandwidthEstimator2.default(hls, ewmaSlow, ewmaFast, config.abrEwmaDefaultEstimate)
              }
              this.fragCurrent = frag
            }
          }
        }, {
          key: '_abandonRulesCheck',
          value: function _abandonRulesCheck () {
          /*
        monitor fragment retrieval time...
        we compute expected time of arrival of the complete fragment.
        we compare it to expected time of buffer starvation
      */
            var hls = this.hls
            var v = hls.media
            var frag = this.fragCurrent
            var loader = frag.loader
            var minAutoLevel = hls.minAutoLevel

            // if loader has been destroyed or loading has been aborted, stop timer and return
            if (!loader || loader.stats && loader.stats.aborted) {
              _logger.logger.warn('frag loader destroy or aborted, disarm abandonRules')
              this.clearTimer()
              return
            }
            var stats = loader.stats
            /* only monitor frag retrieval time if
      (video not paused OR first fragment being loaded(ready state === HAVE_NOTHING = 0)) AND autoswitching enabled AND not lowest level (=> means that we have several levels) */
            if (v && (!v.paused && v.playbackRate !== 0 || !v.readyState) && frag.autoLevel && frag.level) {
              var requestDelay = performance.now() - stats.trequest
              var playbackRate = Math.abs(v.playbackRate)
              // monitor fragment load progress after half of expected fragment duration,to stabilize bitrate
              if (requestDelay > 500 * frag.duration / playbackRate) {
                var levels = hls.levels
                var loadRate = Math.max(1, stats.bw ? stats.bw / 8 : stats.loaded * 1000 / requestDelay)
                // byte/s; at least 1 byte/s to avoid division by zero
                // compute expected fragment length using frag duration and level bitrate. also ensure that expected len is gte than already loaded size
                var level = levels[frag.level]
                var levelBitrate = level.realBitrate ? Math.max(level.realBitrate, level.bitrate) : level.bitrate
                var expectedLen = stats.total ? stats.total : Math.max(stats.loaded, Math.round(frag.duration * levelBitrate / 8))
                var pos = v.currentTime
                var fragLoadedDelay = (expectedLen - stats.loaded) / loadRate
                var bufferStarvationDelay = (_bufferHelper2.default.bufferInfo(v, pos, hls.config.maxBufferHole).end - pos) / playbackRate
                // consider emergency switch down only if we have less than 2 frag buffered AND
                // time to finish loading current fragment is bigger than buffer starvation delay
                // ie if we risk buffer starvation if bw does not increase quickly
                if (bufferStarvationDelay < 2 * frag.duration / playbackRate && fragLoadedDelay > bufferStarvationDelay) {
                  var fragLevelNextLoadedDelay = void 0
                  var nextLoadLevel = void 0
                  // lets iterate through lower level and try to find the biggest one that could avoid rebuffering
                  // we start from current level - 1 and we step down , until we find a matching level
                  for (nextLoadLevel = frag.level - 1; nextLoadLevel > minAutoLevel; nextLoadLevel--) {
                  // compute time to load next fragment at lower level
                  // 0.8 : consider only 80% of current bw to be conservative
                  // 8 = bits per byte (bps/Bps)
                    var levelNextBitrate = levels[nextLoadLevel].realBitrate ? Math.max(levels[nextLoadLevel].realBitrate, levels[nextLoadLevel].bitrate) : levels[nextLoadLevel].bitrate
                    fragLevelNextLoadedDelay = frag.duration * levelNextBitrate / (8 * 0.8 * loadRate)
                    if (fragLevelNextLoadedDelay < bufferStarvationDelay) {
                    // we found a lower level that be rebuffering free with current estimated bw !
                      break
                    }
                  }
                  // only emergency switch down if it takes less time to load new fragment at lowest level instead
                  // of finishing loading current one ...
                  if (fragLevelNextLoadedDelay < fragLoadedDelay) {
                    _logger.logger.warn('loading too slow, abort fragment loading and switch to level ' + nextLoadLevel + ':fragLoadedDelay[' + nextLoadLevel + ']<fragLoadedDelay[' + (frag.level - 1) + '];bufferStarvationDelay:' + fragLevelNextLoadedDelay.toFixed(1) + '<' + fragLoadedDelay.toFixed(1) + ':' + bufferStarvationDelay.toFixed(1))
                    // force next load level in auto mode
                    hls.nextLoadLevel = nextLoadLevel
                    // update bw estimate for this fragment before cancelling load (this will help reducing the bw)
                    this._bwEstimator.sample(requestDelay, stats.loaded)
                    // abort fragment loading
                    loader.abort()
                    // stop abandon rules timer
                    this.clearTimer()
                    hls.trigger(_events2.default.FRAG_LOAD_EMERGENCY_ABORTED, { frag: frag, stats: stats })
                  }
                }
              }
            }
          }
        }, {
          key: 'onFragLoaded',
          value: function onFragLoaded (data) {
            var frag = data.frag
            if (frag.type === 'main' && !isNaN(frag.sn)) {
            // stop monitoring bw once frag loaded
              this.clearTimer()
              // store level id after successful fragment load
              this.lastLoadedFragLevel = frag.level
              // reset forced auto level value so that next level will be selected
              this._nextAutoLevel = -1

              // compute level average bitrate
              if (this.hls.config.abrMaxWithRealBitrate) {
                var level = this.hls.levels[frag.level]
                var loadedBytes = (level.loaded ? level.loaded.bytes : 0) + data.stats.loaded
                var loadedDuration = (level.loaded ? level.loaded.duration : 0) + data.frag.duration
                level.loaded = { bytes: loadedBytes, duration: loadedDuration }
                level.realBitrate = Math.round(8 * loadedBytes / loadedDuration)
              }
              // if fragment has been loaded to perform a bitrate test,
              if (data.frag.bitrateTest) {
                var stats = data.stats
                stats.tparsed = stats.tbuffered = stats.tload
                this.onFragBuffered(data)
              }
            }
          }
        }, {
          key: 'onFragBuffered',
          value: function onFragBuffered (data) {
            var stats = data.stats
            var frag = data.frag
            // only update stats on first frag buffering
            // if same frag is loaded multiple times, it might be in browser cache, and loaded quickly
            // and leading to wrong bw estimation
            // on bitrate test, also only update stats once (if tload = tbuffered == on FRAG_LOADED)
            if (stats.aborted !== true && frag.loadCounter === 1 && frag.type === 'main' && !isNaN(frag.sn) && (!frag.bitrateTest || stats.tload === stats.tbuffered)) {
            // use tparsed-trequest instead of tbuffered-trequest to compute fragLoadingProcessing; rationale is that  buffer appending only happens once media is attached
            // in case we use config.startFragPrefetch while media is not attached yet, fragment might be parsed while media not attached yet, but it will only be buffered on media attached
            // as a consequence it could happen really late in the process. meaning that appending duration might appears huge ... leading to underestimated throughput estimation
              var fragLoadingProcessingMs = stats.tparsed - stats.trequest
              _logger.logger.log('latency/loading/parsing/append/kbps:' + Math.round(stats.tfirst - stats.trequest) + '/' + Math.round(stats.tload - stats.tfirst) + '/' + Math.round(stats.tparsed - stats.tload) + '/' + Math.round(stats.tbuffered - stats.tparsed) + '/' + Math.round(8 * stats.loaded / (stats.tbuffered - stats.trequest)))
              this._bwEstimator.sample(fragLoadingProcessingMs, stats.loaded)
              // if fragment has been loaded to perform a bitrate test, (hls.startLevel = -1), store bitrate test delay duration
              if (frag.bitrateTest) {
                this.bitrateTestDelay = fragLoadingProcessingMs / 1000
              } else {
                this.bitrateTestDelay = 0
              }
            }
          }
        }, {
          key: 'onError',
          value: function onError (data) {
          // stop timer in case of frag loading error
            switch (data.details) {
              case _errors.ErrorDetails.FRAG_LOAD_ERROR:
              case _errors.ErrorDetails.FRAG_LOAD_TIMEOUT:
                this.clearTimer()
                break
              default:
                break
            }
          }
        }, {
          key: 'clearTimer',
          value: function clearTimer () {
            if (this.timer) {
              clearInterval(this.timer)
              this.timer = null
            }
          }

          // return next auto level

        }, {
          key: '_findBestLevel',
          value: function _findBestLevel (currentLevel, currentFragDuration, currentBw, minAutoLevel, maxAutoLevel, maxFetchDuration, bwFactor, bwUpFactor, levels) {
            for (var i = maxAutoLevel; i >= minAutoLevel; i--) {
              var levelInfo = levels[i]
              var levelDetails = levelInfo.details
              var avgDuration = levelDetails ? levelDetails.totalduration / levelDetails.fragments.length : currentFragDuration
              var live = levelDetails ? levelDetails.live : false
              var adjustedbw = void 0
              // follow algorithm captured from stagefright :
              // https://android.googlesource.com/platform/frameworks/av/+/master/media/libstagefright/httplive/LiveSession.cpp
              // Pick the highest bandwidth stream below or equal to estimated bandwidth.
              // consider only 80% of the available bandwidth, but if we are switching up,
              // be even more conservative (70%) to avoid overestimating and immediately
              // switching back.
              if (i <= currentLevel) {
                adjustedbw = bwFactor * currentBw
              } else {
                adjustedbw = bwUpFactor * currentBw
              }
              var bitrate = levels[i].realBitrate ? Math.max(levels[i].realBitrate, levels[i].bitrate) : levels[i].bitrate
              var fetchDuration = bitrate * avgDuration / adjustedbw

              _logger.logger.trace('level/adjustedbw/bitrate/avgDuration/maxFetchDuration/fetchDuration: ' + i + '/' + Math.round(adjustedbw) + '/' + bitrate + '/' + avgDuration + '/' + maxFetchDuration + '/' + fetchDuration)
              // if adjusted bw is greater than level bitrate AND
              if (adjustedbw > bitrate && (
              // fragment fetchDuration unknown OR live stream OR fragment fetchDuration less than max allowed fetch duration, then this level matches
              // we don't account for max Fetch Duration for live streams, this is to avoid switching down when near the edge of live sliding window ...
                !fetchDuration || live || fetchDuration < maxFetchDuration)) {
              // as we are looping from highest to lowest, this will return the best achievable quality level

                return i
              }
            }
            // not enough time budget even with quality level 0 ... rebuffering might happen
            return -1
          }
        }, {
          key: 'nextAutoLevel',
          get: function get () {
            var forcedAutoLevel = this._nextAutoLevel
            var bwEstimator = this._bwEstimator
            // in case next auto level has been forced, and bw not available or not reliable, return forced value
            if (forcedAutoLevel !== -1 && (!bwEstimator || !bwEstimator.canEstimate())) {
              return forcedAutoLevel
            }
            // compute next level using ABR logic
            var nextABRAutoLevel = this._nextABRAutoLevel
            // if forced auto level has been defined, use it to cap ABR computed quality level
            if (forcedAutoLevel !== -1) {
              nextABRAutoLevel = Math.min(forcedAutoLevel, nextABRAutoLevel)
            }
            return nextABRAutoLevel
          },
          set: function set (nextLevel) {
            this._nextAutoLevel = nextLevel
          }
        }, {
          key: '_nextABRAutoLevel',
          get: function get () {
            var hls = this.hls
            var maxAutoLevel = hls.maxAutoLevel
            var levels = hls.levels
            var config = hls.config
            var minAutoLevel = hls.minAutoLevel
            var v = hls.media
            var currentLevel = this.lastLoadedFragLevel
            var currentFragDuration = this.fragCurrent ? this.fragCurrent.duration : 0
            var pos = v ? v.currentTime : 0

            // playbackRate is the absolute value of the playback rate; if v.playbackRate is 0, we use 1 to load as
            // if we're playing back at the normal rate.
            var playbackRate = v && v.playbackRate !== 0 ? Math.abs(v.playbackRate) : 1.0
            var avgbw = this._bwEstimator ? this._bwEstimator.getEstimate() : config.abrEwmaDefaultEstimate

            // bufferStarvationDelay is the wall-clock time left until the playback buffer is exhausted.
            var bufferStarvationDelay = (_bufferHelper2.default.bufferInfo(v, pos, config.maxBufferHole).end - pos) / playbackRate

            // First, look to see if we can find a level matching with our avg bandwidth AND that could also guarantee no rebuffering at all
            var bestLevel = this._findBestLevel(currentLevel, currentFragDuration, avgbw, minAutoLevel, maxAutoLevel, bufferStarvationDelay, config.abrBandWidthFactor, config.abrBandWidthUpFactor, levels)
            if (bestLevel >= 0) {
              return bestLevel
            } else {
              _logger.logger.trace('rebuffering expected to happen, lets try to find a quality level minimizing the rebuffering')
              // not possible to get rid of rebuffering ... let's try to find level that will guarantee less than maxStarvationDelay of rebuffering
              // if no matching level found, logic will return 0
              var maxStarvationDelay = currentFragDuration ? Math.min(currentFragDuration, config.maxStarvationDelay) : config.maxStarvationDelay
              var bwFactor = config.abrBandWidthFactor
              var bwUpFactor = config.abrBandWidthUpFactor
              if (bufferStarvationDelay === 0) {
              // in case buffer is empty, let's check if previous fragment was loaded to perform a bitrate test
                var bitrateTestDelay = this.bitrateTestDelay
                if (bitrateTestDelay) {
                // if it is the case, then we need to adjust our max starvation delay using maxLoadingDelay config value
                // max video loading delay used in  automatic start level selection :
                // in that mode ABR controller will ensure that video loading time (ie the time to fetch the first fragment at lowest quality level +
                // the time to fetch the fragment at the appropriate quality level is less than ```maxLoadingDelay``` )
                // cap maxLoadingDelay and ensure it is not bigger 'than bitrate test' frag duration
                  var maxLoadingDelay = currentFragDuration ? Math.min(currentFragDuration, config.maxLoadingDelay) : config.maxLoadingDelay
                  maxStarvationDelay = maxLoadingDelay - bitrateTestDelay
                  _logger.logger.trace('bitrate test took ' + Math.round(1000 * bitrateTestDelay) + 'ms, set first fragment max fetchDuration to ' + Math.round(1000 * maxStarvationDelay) + ' ms')
                  // don't use conservative factor on bitrate test
                  bwFactor = bwUpFactor = 1
                }
              }
              bestLevel = this._findBestLevel(currentLevel, currentFragDuration, avgbw, minAutoLevel, maxAutoLevel, bufferStarvationDelay + maxStarvationDelay, bwFactor, bwUpFactor, levels)
              return Math.max(bestLevel, 0)
            }
          }
        }])

        return AbrController
      }(_eventHandler2.default))

      exports.default = AbrController
    }, { 30: 30, 31: 31, 32: 32, 34: 34, 48: 48, 50: 50 }],
    6: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      var _binarySearch = _dereq_(45)

      var _binarySearch2 = _interopRequireDefault(_binarySearch)

      var _bufferHelper = _dereq_(34)

      var _bufferHelper2 = _interopRequireDefault(_bufferHelper)

      var _demuxer = _dereq_(24)

      var _demuxer2 = _interopRequireDefault(_demuxer)

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _eventHandler = _dereq_(31)

      var _eventHandler2 = _interopRequireDefault(_eventHandler)

      var _levelHelper = _dereq_(35)

      var _levelHelper2 = _interopRequireDefault(_levelHelper)

      var _timeRanges = _dereq_(51)

      var _timeRanges2 = _interopRequireDefault(_timeRanges)

      var _errors = _dereq_(30)

      var _logger = _dereq_(50)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      function _possibleConstructorReturn (self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called") } return call && (typeof call === 'object' || typeof call === 'function') ? call : self }

      function _inherits (subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass) } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass } /*
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * Audio Stream Controller
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               */

      var State = {
        STOPPED: 'STOPPED',
        STARTING: 'STARTING',
        IDLE: 'IDLE',
        PAUSED: 'PAUSED',
        KEY_LOADING: 'KEY_LOADING',
        FRAG_LOADING: 'FRAG_LOADING',
        FRAG_LOADING_WAITING_RETRY: 'FRAG_LOADING_WAITING_RETRY',
        WAITING_TRACK: 'WAITING_TRACK',
        PARSING: 'PARSING',
        PARSED: 'PARSED',
        BUFFER_FLUSHING: 'BUFFER_FLUSHING',
        ENDED: 'ENDED',
        ERROR: 'ERROR',
        WAITING_INIT_PTS: 'WAITING_INIT_PTS'
      }

      var AudioStreamController = (function (_EventHandler) {
        _inherits(AudioStreamController, _EventHandler)

        function AudioStreamController (hls) {
          _classCallCheck(this, AudioStreamController)

          var _this = _possibleConstructorReturn(this, (AudioStreamController.__proto__ || Object.getPrototypeOf(AudioStreamController)).call(this, hls, _events2.default.MEDIA_ATTACHED, _events2.default.MEDIA_DETACHING, _events2.default.AUDIO_TRACKS_UPDATED, _events2.default.AUDIO_TRACK_SWITCHING, _events2.default.AUDIO_TRACK_LOADED, _events2.default.KEY_LOADED, _events2.default.FRAG_LOADED, _events2.default.FRAG_PARSING_INIT_SEGMENT, _events2.default.FRAG_PARSING_DATA, _events2.default.FRAG_PARSED, _events2.default.ERROR, _events2.default.BUFFER_CREATED, _events2.default.BUFFER_APPENDED, _events2.default.BUFFER_FLUSHED, _events2.default.INIT_PTS_FOUND))

          _this.config = hls.config
          _this.audioCodecSwap = false
          _this.ticks = 0
          _this._state = State.STOPPED
          _this.ontick = _this.tick.bind(_this)
          _this.initPTS = []
          _this.waitingFragment = null
          return _this
        }

        _createClass(AudioStreamController, [{
          key: 'destroy',
          value: function destroy () {
            this.stopLoad()
            if (this.timer) {
              clearInterval(this.timer)
              this.timer = null
            }
            _eventHandler2.default.prototype.destroy.call(this)
            this.state = State.STOPPED
          }

          // Signal that video PTS was found

        }, {
          key: 'onInitPtsFound',
          value: function onInitPtsFound (data) {
            var demuxerId = data.id
            var cc = data.frag.cc
            var initPTS = data.initPTS
            if (demuxerId === 'main') {
            // Always update the new INIT PTS
            // Can change due level switch
              this.initPTS[cc] = initPTS
              _logger.logger.log('InitPTS for cc:' + cc + ' found from video track:' + initPTS)

              // If we are waiting we need to demux/remux the waiting frag
              // With the new initPTS
              if (this.state === State.WAITING_INIT_PTS) {
                _logger.logger.log('sending pending audio frag to demuxer')
                this.state = State.FRAG_LOADING
                // We have audio frag waiting or video pts
                // Let process it
                this.onFragLoaded(this.waitingFragment)
                // Lets clean the waiting frag
                this.waitingFragment = null
              }
            }
          }
        }, {
          key: 'startLoad',
          value: function startLoad (startPosition) {
            if (this.tracks) {
              var lastCurrentTime = this.lastCurrentTime
              this.stopLoad()
              if (!this.timer) {
                this.timer = setInterval(this.ontick, 100)
              }
              this.fragLoadError = 0
              if (lastCurrentTime > 0 && startPosition === -1) {
                _logger.logger.log('audio:override startPosition with lastCurrentTime @' + lastCurrentTime.toFixed(3))
                this.state = State.IDLE
              } else {
                this.lastCurrentTime = this.startPosition ? this.startPosition : startPosition
                this.state = State.STARTING
              }
              this.nextLoadPosition = this.startPosition = this.lastCurrentTime
              this.tick()
            } else {
              this.startPosition = startPosition
              this.state = State.STOPPED
            }
          }
        }, {
          key: 'stopLoad',
          value: function stopLoad () {
            var frag = this.fragCurrent
            if (frag) {
              if (frag.loader) {
                frag.loader.abort()
              }
              this.fragCurrent = null
            }
            this.fragPrevious = null
            if (this.demuxer) {
              this.demuxer.destroy()
              this.demuxer = null
            }
            this.state = State.STOPPED
          }
        }, {
          key: 'tick',
          value: function tick () {
            this.ticks++
            if (this.ticks === 1) {
              this.doTick()
              if (this.ticks > 1) {
                setTimeout(this.tick, 1)
              }
              this.ticks = 0
            }
          }
        }, {
          key: 'doTick',
          value: function doTick () {
            var pos
            var track
            var trackDetails
            var hls = this.hls
            var config = hls.config
            // logger.log('audioStream:' + this.state);
            switch (this.state) {
              case State.ERROR:
              // don't do anything in error state to avoid breaking further ...
              case State.PAUSED:
              // don't do anything in paused state either ...
              case State.BUFFER_FLUSHING:
                break
              case State.STARTING:
                this.state = State.WAITING_TRACK
                this.loadedmetadata = false
                break
              case State.IDLE:
                var tracks = this.tracks
                // audio tracks not received => exit loop
                if (!tracks) {
                  break
                }
                // if video not attached AND
                // start fragment already requested OR start frag prefetch disable
                // exit loop
                // => if media not attached but start frag prefetch is enabled and start frag not requested yet, we will not exit loop
                if (!this.media && (this.startFragRequested || !config.startFragPrefetch)) {
                  break
                }
                // determine next candidate fragment to be loaded, based on current position and
                //  end of buffer position
                // if we have not yet loaded any fragment, start loading from start position
                if (this.loadedmetadata) {
                  pos = this.media.currentTime
                } else {
                  pos = this.nextLoadPosition
                }
                var media = this.mediaBuffer ? this.mediaBuffer : this.media
                var bufferInfo = _bufferHelper2.default.bufferInfo(media, pos, config.maxBufferHole)
                var bufferLen = bufferInfo.len
                var bufferEnd = bufferInfo.end
                var fragPrevious = this.fragPrevious
                var maxBufLen = config.maxMaxBufferLength
                var audioSwitch = this.audioSwitch
                var trackId = this.trackId

                // if buffer length is less than maxBufLen try to load a new fragment
                if ((bufferLen < maxBufLen || audioSwitch) && trackId < tracks.length) {
                  trackDetails = tracks[trackId].details
                  // if track info not retrieved yet, switch state and wait for track retrieval
                  if (typeof trackDetails === 'undefined') {
                    this.state = State.WAITING_TRACK
                    break
                  }

                  // we just got done loading the final fragment, check if we need to finalize media stream
                  if (!audioSwitch && !trackDetails.live && fragPrevious && fragPrevious.sn === trackDetails.endSN) {
                  // if we are not seeking or if we are seeking but everything (almost) til the end is buffered, let's signal eos
                  // we don't compare exactly media.duration === bufferInfo.end as there could be some subtle media duration difference when switching
                  // between different renditions. using half frag duration should help cope with these cases.
                    if (!this.media.seeking || this.media.duration - bufferEnd < fragPrevious.duration / 2) {
                    // Finalize the media stream
                      this.hls.trigger(_events2.default.BUFFER_EOS, { type: 'audio' })
                      this.state = State.ENDED
                      break
                    }
                  }

                  // find fragment index, contiguous with end of buffer position
                  var fragments = trackDetails.fragments
                  var fragLen = fragments.length
                  var start = fragments[0].start
                  var end = fragments[fragLen - 1].start + fragments[fragLen - 1].duration
                  var frag = void 0

                  // When switching audio track, reload audio as close as possible to currentTime
                  if (audioSwitch) {
                    if (trackDetails.live && !trackDetails.PTSKnown) {
                      _logger.logger.log('switching audiotrack, live stream, unknown PTS,load first fragment')
                      bufferEnd = 0
                    } else {
                      bufferEnd = pos
                      // if currentTime (pos) is less than alt audio playlist start time, it means that alt audio is ahead of currentTime
                      if (trackDetails.PTSKnown && pos < start) {
                      // if everything is buffered from pos to start or if audio buffer upfront, let's seek to start
                        if (bufferInfo.end > start || bufferInfo.nextStart) {
                          _logger.logger.log('alt audio track ahead of main track, seek to start of alt audio track')
                          this.media.currentTime = start + 0.05
                        } else {
                          return
                        }
                      }
                    }
                  }
                  if (trackDetails.initSegment && !trackDetails.initSegment.data) {
                    frag = trackDetails.initSegment
                  }
                  // if bufferEnd before start of playlist, load first fragment
                  else if (bufferEnd <= start) {
                    frag = fragments[0]
                    if (trackDetails.live && frag.loadIdx && frag.loadIdx === this.fragLoadIdx) {
                      // we just loaded this first fragment, and we are still lagging behind the start of the live playlist
                      // let's force seek to start
                      var nextBuffered = bufferInfo.nextStart ? bufferInfo.nextStart : start
                      _logger.logger.log('no alt audio available @currentTime:' + this.media.currentTime + ', seeking @' + (nextBuffered + 0.05))
                      this.media.currentTime = nextBuffered + 0.05
                      return
                    }
                  } else {
                    var foundFrag = void 0
                    var maxFragLookUpTolerance = config.maxFragLookUpTolerance
                    var fragNext = fragPrevious ? fragments[fragPrevious.sn - fragments[0].sn + 1] : undefined
                    var fragmentWithinToleranceTest = function fragmentWithinToleranceTest (candidate) {
                      // offset should be within fragment boundary - config.maxFragLookUpTolerance
                      // this is to cope with situations like
                      // bufferEnd = 9.991
                      // frag[Ø] : [0,10]
                      // frag[1] : [10,20]
                      // bufferEnd is within frag[0] range ... although what we are expecting is to return frag[1] here
                      //              frag start               frag start+duration
                      //                  |-----------------------------|
                      //              <--->                         <--->
                      //  ...--------><-----------------------------><---------....
                      // previous frag         matching fragment         next frag
                      //  return -1             return 0                 return 1
                      // logger.log(`level/sn/start/end/bufEnd:${level}/${candidate.sn}/${candidate.start}/${(candidate.start+candidate.duration)}/${bufferEnd}`);
                      // Set the lookup tolerance to be small enough to detect the current segment - ensures we don't skip over very small segments
                      var candidateLookupTolerance = Math.min(maxFragLookUpTolerance, candidate.duration)
                      if (candidate.start + candidate.duration - candidateLookupTolerance <= bufferEnd) {
                        return 1
                      } // if maxFragLookUpTolerance will have negative value then don't return -1 for first element
                      else if (candidate.start - candidateLookupTolerance > bufferEnd && candidate.start) {
                        return -1
                      }
                      return 0
                    }

                    if (bufferEnd < end) {
                      if (bufferEnd > end - maxFragLookUpTolerance) {
                        maxFragLookUpTolerance = 0
                      }
                      // Prefer the next fragment if it's within tolerance
                      if (fragNext && !fragmentWithinToleranceTest(fragNext)) {
                        foundFrag = fragNext
                      } else {
                        foundFrag = _binarySearch2.default.search(fragments, fragmentWithinToleranceTest)
                      }
                    } else {
                      // reach end of playlist
                      foundFrag = fragments[fragLen - 1]
                    }
                    if (foundFrag) {
                      frag = foundFrag
                      start = foundFrag.start
                      // logger.log('find SN matching with pos:' +  bufferEnd + ':' + frag.sn);
                      if (fragPrevious && frag.level === fragPrevious.level && frag.sn === fragPrevious.sn) {
                        if (frag.sn < trackDetails.endSN) {
                          frag = fragments[frag.sn + 1 - trackDetails.startSN]
                          _logger.logger.log('SN just loaded, load next one: ' + frag.sn)
                        } else {
                          frag = null
                        }
                      }
                    }
                  }
                  if (frag) {
                  // logger.log('      loading frag ' + i +',pos/bufEnd:' + pos.toFixed(3) + '/' + bufferEnd.toFixed(3));
                    if (frag.decryptdata && frag.decryptdata.uri != null && frag.decryptdata.key == null) {
                      _logger.logger.log('Loading key for ' + frag.sn + ' of [' + trackDetails.startSN + ' ,' + trackDetails.endSN + '],track ' + trackId)
                      this.state = State.KEY_LOADING
                      hls.trigger(_events2.default.KEY_LOADING, { frag: frag })
                    } else {
                      _logger.logger.log('Loading ' + frag.sn + ' of [' + trackDetails.startSN + ' ,' + trackDetails.endSN + '],track ' + trackId + ', currentTime:' + pos + ',bufferEnd:' + bufferEnd.toFixed(3))
                      // ensure that we are not reloading the same fragments in loop ...
                      if (this.fragLoadIdx !== undefined) {
                        this.fragLoadIdx++
                      } else {
                        this.fragLoadIdx = 0
                      }
                      if (frag.loadCounter) {
                        frag.loadCounter++
                        var maxThreshold = config.fragLoadingLoopThreshold
                        // if this frag has already been loaded 3 times, and if it has been reloaded recently
                        if (frag.loadCounter > maxThreshold && Math.abs(this.fragLoadIdx - frag.loadIdx) < maxThreshold) {
                          hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.FRAG_LOOP_LOADING_ERROR, fatal: false, frag: frag })
                          return
                        }
                      } else {
                        frag.loadCounter = 1
                      }
                      frag.loadIdx = this.fragLoadIdx
                      this.fragCurrent = frag
                      this.startFragRequested = true
                      if (!isNaN(frag.sn)) {
                        this.nextLoadPosition = frag.start + frag.duration
                      }
                      hls.trigger(_events2.default.FRAG_LOADING, { frag: frag })
                      this.state = State.FRAG_LOADING
                    }
                  }
                }
                break
              case State.WAITING_TRACK:
                track = this.tracks[this.trackId]
                // check if playlist is already loaded
                if (track && track.details) {
                  this.state = State.IDLE
                }
                break
              case State.FRAG_LOADING_WAITING_RETRY:
                var now = performance.now()
                var retryDate = this.retryDate
                media = this.media
                var isSeeking = media && media.seeking
                // if current time is gt than retryDate, or if media seeking let's switch to IDLE state to retry loading
                if (!retryDate || now >= retryDate || isSeeking) {
                  _logger.logger.log('audioStreamController: retryDate reached, switch back to IDLE state')
                  this.state = State.IDLE
                }
                break
              case State.WAITING_INIT_PTS:
              case State.STOPPED:
              case State.FRAG_LOADING:
              case State.PARSING:
              case State.PARSED:
              case State.ENDED:
                break
              default:
                break
            }
          }
        }, {
          key: 'onMediaAttached',
          value: function onMediaAttached (data) {
            var media = this.media = this.mediaBuffer = data.media
            this.onvseeking = this.onMediaSeeking.bind(this)
            this.onvended = this.onMediaEnded.bind(this)
            media.addEventListener('seeking', this.onvseeking)
            media.addEventListener('ended', this.onvended)
            var config = this.config
            if (this.tracks && config.autoStartLoad) {
              this.startLoad(config.startPosition)
            }
          }
        }, {
          key: 'onMediaDetaching',
          value: function onMediaDetaching () {
            var media = this.media
            if (media && media.ended) {
              _logger.logger.log('MSE detaching and video ended, reset startPosition')
              this.startPosition = this.lastCurrentTime = 0
            }

            // reset fragment loading counter on MSE detaching to avoid reporting FRAG_LOOP_LOADING_ERROR after error recovery
            var tracks = this.tracks
            if (tracks) {
            // reset fragment load counter
              tracks.forEach(function (track) {
                if (track.details) {
                  track.details.fragments.forEach(function (fragment) {
                    fragment.loadCounter = undefined
                  })
                }
              })
            }
            // remove video listeners
            if (media) {
              media.removeEventListener('seeking', this.onvseeking)
              media.removeEventListener('ended', this.onvended)
              this.onvseeking = this.onvseeked = this.onvended = null
            }
            this.media = this.mediaBuffer = null
            this.loadedmetadata = false
            this.stopLoad()
          }
        }, {
          key: 'onMediaSeeking',
          value: function onMediaSeeking () {
            if (this.state === State.ENDED) {
            // switch to IDLE state to check for potential new fragment
              this.state = State.IDLE
            }
            if (this.media) {
              this.lastCurrentTime = this.media.currentTime
            }
            // avoid reporting fragment loop loading error in case user is seeking several times on same position
            if (this.fragLoadIdx !== undefined) {
              this.fragLoadIdx += 2 * this.config.fragLoadingLoopThreshold
            }
            // tick to speed up processing
            this.tick()
          }
        }, {
          key: 'onMediaEnded',
          value: function onMediaEnded () {
          // reset startPosition and lastCurrentTime to restart playback @ stream beginning
            this.startPosition = this.lastCurrentTime = 0
          }
        }, {
          key: 'onAudioTracksUpdated',
          value: function onAudioTracksUpdated (data) {
            _logger.logger.log('audio tracks updated')
            this.tracks = data.audioTracks
          }
        }, {
          key: 'onAudioTrackSwitching',
          value: function onAudioTrackSwitching (data) {
          // if any URL found on new audio track, it is an alternate audio track
            var altAudio = !!data.url
            this.trackId = data.id
            this.state = State.IDLE

            this.fragCurrent = null
            this.state = State.PAUSED
            this.waitingFragment = null
            // destroy useless demuxer when switching audio to main
            if (!altAudio) {
              if (this.demuxer) {
                this.demuxer.destroy()
                this.demuxer = null
              }
            } else {
            // switching to audio track, start timer if not already started
              if (!this.timer) {
                this.timer = setInterval(this.ontick, 100)
              }
            }

            // should we switch tracks ?
            if (altAudio) {
              this.audioSwitch = true
              // main audio track are handled by stream-controller, just do something if switching to alt audio track
              this.state = State.IDLE
              // increase fragment load Index to avoid frag loop loading error after buffer flush
              if (this.fragLoadIdx !== undefined) {
                this.fragLoadIdx += 2 * this.config.fragLoadingLoopThreshold
              }
            }
            this.tick()
          }
        }, {
          key: 'onAudioTrackLoaded',
          value: function onAudioTrackLoaded (data) {
            var newDetails = data.details
            var trackId = data.id
            var track = this.tracks[trackId]
            var duration = newDetails.totalduration
            var sliding = 0

            _logger.logger.log('track ' + trackId + ' loaded [' + newDetails.startSN + ',' + newDetails.endSN + '],duration:' + duration)

            if (newDetails.live) {
              var curDetails = track.details
              if (curDetails && newDetails.fragments.length > 0) {
              // we already have details for that level, merge them
                _levelHelper2.default.mergeDetails(curDetails, newDetails)
                sliding = newDetails.fragments[0].start
                // TODO
                // this.liveSyncPosition = this.computeLivePosition(sliding, curDetails);
                if (newDetails.PTSKnown) {
                  _logger.logger.log('live audio playlist sliding:' + sliding.toFixed(3))
                } else {
                  _logger.logger.log('live audio playlist - outdated PTS, unknown sliding')
                }
              } else {
                newDetails.PTSKnown = false
                _logger.logger.log('live audio playlist - first load, unknown sliding')
              }
            } else {
              newDetails.PTSKnown = false
            }
            track.details = newDetails

            // compute start position
            if (!this.startFragRequested) {
            // compute start position if set to -1. use it straight away if value is defined
              if (this.startPosition === -1) {
              // first, check if start time offset has been set in playlist, if yes, use this value
                var startTimeOffset = newDetails.startTimeOffset
                if (!isNaN(startTimeOffset)) {
                  _logger.logger.log('start time offset found in playlist, adjust startPosition to ' + startTimeOffset)
                  this.startPosition = startTimeOffset
                } else {
                  this.startPosition = 0
                }
              }
              this.nextLoadPosition = this.startPosition
            }
            // only switch batck to IDLE state if we were waiting for track to start downloading a new fragment
            if (this.state === State.WAITING_TRACK) {
              this.state = State.IDLE
            }
            // trigger handler right now
            this.tick()
          }
        }, {
          key: 'onKeyLoaded',
          value: function onKeyLoaded () {
            if (this.state === State.KEY_LOADING) {
              this.state = State.IDLE
              this.tick()
            }
          }
        }, {
          key: 'onFragLoaded',
          value: function onFragLoaded (data) {
            var fragCurrent = this.fragCurrent
            var fragLoaded = data.frag
            if (this.state === State.FRAG_LOADING && fragCurrent && fragLoaded.type === 'audio' && fragLoaded.level === fragCurrent.level && fragLoaded.sn === fragCurrent.sn) {
              var track = this.tracks[this.trackId]
              var details = track.details
              var duration = details.totalduration
              var trackId = fragCurrent.level
              var sn = fragCurrent.sn
              var cc = fragCurrent.cc
              var audioCodec = this.config.defaultAudioCodec || track.audioCodec || 'mp4a.40.2'
              var stats = this.stats = data.stats
              if (sn === 'initSegment') {
                this.state = State.IDLE

                stats.tparsed = stats.tbuffered = performance.now()
                details.initSegment.data = data.payload
                this.hls.trigger(_events2.default.FRAG_BUFFERED, { stats: stats, frag: fragCurrent, id: 'audio' })
                this.tick()
              } else {
                this.state = State.PARSING
                // transmux the MPEG-TS data to ISO-BMFF segments
                this.appended = false
                if (!this.demuxer) {
                  this.demuxer = new _demuxer2.default(this.hls, 'audio')
                }
                // Check if we have video initPTS
                // If not we need to wait for it
                var initPTS = this.initPTS[cc]
                var initSegmentData = details.initSegment ? details.initSegment.data : []
                if (initSegmentData || initPTS !== undefined) {
                  this.pendingBuffering = true
                  _logger.logger.log('Demuxing ' + sn + ' of [' + details.startSN + ' ,' + details.endSN + '],track ' + trackId)
                  // time Offset is accurate if level PTS is known, or if playlist is not sliding (not live)
                  var accurateTimeOffset = false // details.PTSKnown || !details.live;
                  this.demuxer.push(data.payload, initSegmentData, audioCodec, null, fragCurrent, duration, accurateTimeOffset, initPTS)
                } else {
                  _logger.logger.log('unknown video PTS for continuity counter ' + cc + ', waiting for video PTS before demuxing audio frag ' + sn + ' of [' + details.startSN + ' ,' + details.endSN + '],track ' + trackId)
                  this.waitingFragment = data
                  this.state = State.WAITING_INIT_PTS
                }
              }
            }
            this.fragLoadError = 0
          }
        }, {
          key: 'onFragParsingInitSegment',
          value: function onFragParsingInitSegment (data) {
            var fragCurrent = this.fragCurrent
            var fragNew = data.frag
            if (fragCurrent && data.id === 'audio' && fragNew.sn === fragCurrent.sn && fragNew.level === fragCurrent.level && this.state === State.PARSING) {
              var tracks = data.tracks
              var track = void 0

              // delete any video track found on audio demuxer
              if (tracks.video) {
                delete tracks.video
              }

              // include levelCodec in audio and video tracks
              track = tracks.audio
              if (track) {
                track.levelCodec = 'mp4a.40.2'
                track.id = data.id
                this.hls.trigger(_events2.default.BUFFER_CODECS, tracks)
                _logger.logger.log('audio track:audio,container:' + track.container + ',codecs[level/parsed]=[' + track.levelCodec + '/' + track.codec + ']')
                var initSegment = track.initSegment
                if (initSegment) {
                  var appendObj = { type: 'audio', data: initSegment, parent: 'audio', content: 'initSegment' }
                  if (this.audioSwitch) {
                    this.pendingData = [appendObj]
                  } else {
                    this.appended = true
                    // arm pending Buffering flag before appending a segment
                    this.pendingBuffering = true
                    this.hls.trigger(_events2.default.BUFFER_APPENDING, appendObj)
                  }
                }
                // trigger handler right now
                this.tick()
              }
            }
          }
        }, {
          key: 'onFragParsingData',
          value: function onFragParsingData (data) {
            var _this2 = this

            var fragCurrent = this.fragCurrent
            var fragNew = data.frag
            if (fragCurrent && data.id === 'audio' && data.type === 'audio' && fragNew.sn === fragCurrent.sn && fragNew.level === fragCurrent.level && this.state === State.PARSING) {
              var trackId = this.trackId
              var track = this.tracks[trackId]
              var hls = this.hls

              if (isNaN(data.endPTS)) {
                data.endPTS = data.startPTS + fragCurrent.duration
                data.endDTS = data.startDTS + fragCurrent.duration
              }

              _logger.logger.log('parsed ' + data.type + ',PTS:[' + data.startPTS.toFixed(3) + ',' + data.endPTS.toFixed(3) + '],DTS:[' + data.startDTS.toFixed(3) + '/' + data.endDTS.toFixed(3) + '],nb:' + data.nb)
              _levelHelper2.default.updateFragPTSDTS(track.details, fragCurrent.sn, data.startPTS, data.endPTS)

              var audioSwitch = this.audioSwitch
              var media = this.media
              var appendOnBufferFlush = false
              // Only flush audio from old audio tracks when PTS is known on new audio track
              if (audioSwitch && media) {
                if (media.readyState) {
                  var currentTime = media.currentTime
                  _logger.logger.log('switching audio track : currentTime:' + currentTime)
                  if (currentTime >= data.startPTS) {
                    _logger.logger.log('switching audio track : flushing all audio')
                    this.state = State.BUFFER_FLUSHING
                    hls.trigger(_events2.default.BUFFER_FLUSHING, { startOffset: 0, endOffset: Number.POSITIVE_INFINITY, type: 'audio' })
                    appendOnBufferFlush = true
                    // Lets announce that the initial audio track switch flush occur
                    this.audioSwitch = false
                    hls.trigger(_events2.default.AUDIO_TRACK_SWITCHED, { id: trackId })
                  }
                } else {
                // Lets announce that the initial audio track switch flush occur
                  this.audioSwitch = false
                  hls.trigger(_events2.default.AUDIO_TRACK_SWITCHED, { id: trackId })
                }
              }

              var pendingData = this.pendingData
              if (!this.audioSwitch) {
                [data.data1, data.data2].forEach(function (buffer) {
                  if (buffer && buffer.length) {
                    pendingData.push({ type: data.type, data: buffer, parent: 'audio', content: 'data' })
                  }
                })
                if (!appendOnBufferFlush && pendingData.length) {
                  pendingData.forEach(function (appendObj) {
                  // only append in PARSING state (rationale is that an appending error could happen synchronously on first segment appending)
                  // in that case it is useless to append following segments
                    if (_this2.state === State.PARSING) {
                    // arm pending Buffering flag before appending a segment
                      _this2.pendingBuffering = true
                      _this2.hls.trigger(_events2.default.BUFFER_APPENDING, appendObj)
                    }
                  })
                  this.pendingData = []
                  this.appended = true
                }
              }
              // trigger handler right now
              this.tick()
            }
          }
        }, {
          key: 'onFragParsed',
          value: function onFragParsed (data) {
            var fragCurrent = this.fragCurrent
            var fragNew = data.frag
            if (fragCurrent && data.id === 'audio' && fragNew.sn === fragCurrent.sn && fragNew.level === fragCurrent.level && this.state === State.PARSING) {
              this.stats.tparsed = performance.now()
              this.state = State.PARSED
              this._checkAppendedParsed()
            }
          }
        }, {
          key: 'onBufferCreated',
          value: function onBufferCreated (data) {
            var audioTrack = data.tracks.audio
            if (audioTrack) {
              this.mediaBuffer = audioTrack.buffer
              this.loadedmetadata = true
            }
          }
        }, {
          key: 'onBufferAppended',
          value: function onBufferAppended (data) {
            if (data.parent === 'audio') {
              var state = this.state
              if (state === State.PARSING || state === State.PARSED) {
              // check if all buffers have been appended
                this.pendingBuffering = data.pending > 0
                this._checkAppendedParsed()
              }
            }
          }
        }, {
          key: '_checkAppendedParsed',
          value: function _checkAppendedParsed () {
          // trigger handler right now
            if (this.state === State.PARSED && (!this.appended || !this.pendingBuffering)) {
              var frag = this.fragCurrent
              var stats = this.stats
              var hls = this.hls
              if (frag) {
                this.fragPrevious = frag
                stats.tbuffered = performance.now()
                hls.trigger(_events2.default.FRAG_BUFFERED, { stats: stats, frag: frag, id: 'audio' })
                var media = this.mediaBuffer ? this.mediaBuffer : this.media
                _logger.logger.log('audio buffered : ' + _timeRanges2.default.toString(media.buffered))
                if (this.audioSwitch && this.appended) {
                  this.audioSwitch = false
                  hls.trigger(_events2.default.AUDIO_TRACK_SWITCHED, { id: this.trackId })
                }
                this.state = State.IDLE
              }
              this.tick()
            }
          }
        }, {
          key: 'onError',
          value: function onError (data) {
            var frag = data.frag
            // don't handle frag error not related to audio fragment
            if (frag && frag.type !== 'audio') {
              return
            }
            switch (data.details) {
              case _errors.ErrorDetails.FRAG_LOAD_ERROR:
              case _errors.ErrorDetails.FRAG_LOAD_TIMEOUT:
                if (!data.fatal) {
                  var loadError = this.fragLoadError
                  if (loadError) {
                    loadError++
                  } else {
                    loadError = 1
                  }
                  var config = this.config
                  if (loadError <= config.fragLoadingMaxRetry) {
                    this.fragLoadError = loadError
                    // reset load counter to avoid frag loop loading error
                    frag.loadCounter = 0
                    // exponential backoff capped to config.fragLoadingMaxRetryTimeout
                    var delay = Math.min(Math.pow(2, loadError - 1) * config.fragLoadingRetryDelay, config.fragLoadingMaxRetryTimeout)
                    _logger.logger.warn('audioStreamController: frag loading failed, retry in ' + delay + ' ms')
                    this.retryDate = performance.now() + delay
                    // retry loading state
                    this.state = State.FRAG_LOADING_WAITING_RETRY
                  } else {
                    _logger.logger.error('audioStreamController: ' + data.details + ' reaches max retry, redispatch as fatal ...')
                    // switch error to fatal
                    data.fatal = true
                    this.state = State.ERROR
                  }
                }
                break
              case _errors.ErrorDetails.FRAG_LOOP_LOADING_ERROR:
              case _errors.ErrorDetails.AUDIO_TRACK_LOAD_ERROR:
              case _errors.ErrorDetails.AUDIO_TRACK_LOAD_TIMEOUT:
              case _errors.ErrorDetails.KEY_LOAD_ERROR:
              case _errors.ErrorDetails.KEY_LOAD_TIMEOUT:
              //  when in ERROR state, don't switch back to IDLE state in case a non-fatal error is received
                if (this.state !== State.ERROR) {
                // if fatal error, stop processing, otherwise move to IDLE to retry loading
                  this.state = data.fatal ? State.ERROR : State.IDLE
                  _logger.logger.warn('audioStreamController: ' + data.details + ' while loading frag,switch to ' + this.state + ' state ...')
                }
                break
              case _errors.ErrorDetails.BUFFER_FULL_ERROR:
              // if in appending state
                if (data.parent === 'audio' && (this.state === State.PARSING || this.state === State.PARSED)) {
                  var media = this.mediaBuffer
                  var currentTime = this.media.currentTime
                  var mediaBuffered = media && _bufferHelper2.default.isBuffered(media, currentTime) && _bufferHelper2.default.isBuffered(media, currentTime + 0.5)
                  // reduce max buf len if current position is buffered
                  if (mediaBuffered) {
                    var _config = this.config
                    if (_config.maxMaxBufferLength >= _config.maxBufferLength) {
                    // reduce max buffer length as it might be too high. we do this to avoid loop flushing ...
                      _config.maxMaxBufferLength /= 2
                      _logger.logger.warn('audio:reduce max buffer length to ' + _config.maxMaxBufferLength + 's')
                      // increase fragment load Index to avoid frag loop loading error after buffer flush
                      this.fragLoadIdx += 2 * _config.fragLoadingLoopThreshold
                    }
                    this.state = State.IDLE
                  } else {
                  // current position is not buffered, but browser is still complaining about buffer full error
                  // this happens on IE/Edge, refer to https://github.com/video-dev/hls.js/pull/708
                  // in that case flush the whole audio buffer to recover
                    _logger.logger.warn('buffer full error also media.currentTime is not buffered, flush audio buffer')
                    this.fragCurrent = null
                    // flush everything
                    this.state = State.BUFFER_FLUSHING
                    this.hls.trigger(_events2.default.BUFFER_FLUSHING, { startOffset: 0, endOffset: Number.POSITIVE_INFINITY, type: 'audio' })
                  }
                }
                break
              default:
                break
            }
          }
        }, {
          key: 'onBufferFlushed',
          value: function onBufferFlushed () {
            var _this3 = this

            var pendingData = this.pendingData
            if (pendingData && pendingData.length) {
              _logger.logger.log('appending pending audio data on Buffer Flushed')
              pendingData.forEach(function (appendObj) {
                _this3.hls.trigger(_events2.default.BUFFER_APPENDING, appendObj)
              })
              this.appended = true
              this.pendingData = []
              this.state = State.PARSED
            } else {
            // move to IDLE once flush complete. this should trigger new fragment loading
              this.state = State.IDLE
              // reset reference to frag
              this.fragPrevious = null
              this.tick()
            }
          }
        }, {
          key: 'state',
          set: function set (nextState) {
            if (this.state !== nextState) {
              var previousState = this.state
              this._state = nextState
              _logger.logger.log('audio stream:' + previousState + '->' + nextState)
            }
          },
          get: function get () {
            return this._state
          }
        }])

        return AudioStreamController
      }(_eventHandler2.default))

      exports.default = AudioStreamController
    }, { 24: 24, 30: 30, 31: 31, 32: 32, 34: 34, 35: 35, 45: 45, 50: 50, 51: 51 }],
    7: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _eventHandler = _dereq_(31)

      var _eventHandler2 = _interopRequireDefault(_eventHandler)

      var _logger = _dereq_(50)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      function _possibleConstructorReturn (self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called") } return call && (typeof call === 'object' || typeof call === 'function') ? call : self }

      function _inherits (subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass) } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass } /*
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * audio track controller
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               */

      var AudioTrackController = (function (_EventHandler) {
        _inherits(AudioTrackController, _EventHandler)

        function AudioTrackController (hls) {
          _classCallCheck(this, AudioTrackController)

          var _this = _possibleConstructorReturn(this, (AudioTrackController.__proto__ || Object.getPrototypeOf(AudioTrackController)).call(this, hls, _events2.default.MANIFEST_LOADING, _events2.default.MANIFEST_LOADED, _events2.default.AUDIO_TRACK_LOADED))

          _this.ticks = 0
          _this.ontick = _this.tick.bind(_this)
          return _this
        }

        _createClass(AudioTrackController, [{
          key: 'destroy',
          value: function destroy () {
            _eventHandler2.default.prototype.destroy.call(this)
          }
        }, {
          key: 'tick',
          value: function tick () {
            this.ticks++
            if (this.ticks === 1) {
              this.doTick()
              if (this.ticks > 1) {
                setTimeout(this.tick, 1)
              }
              this.ticks = 0
            }
          }
        }, {
          key: 'doTick',
          value: function doTick () {
            this.updateTrack(this.trackId)
          }
        }, {
          key: 'onManifestLoading',
          value: function onManifestLoading () {
          // reset audio tracks on manifest loading
            this.tracks = []
            this.trackId = -1
          }
        }, {
          key: 'onManifestLoaded',
          value: function onManifestLoaded (data) {
            var _this2 = this

            var tracks = data.audioTracks || []
            var defaultFound = false
            this.tracks = tracks
            this.hls.trigger(_events2.default.AUDIO_TRACKS_UPDATED, { audioTracks: tracks })
            // loop through available audio tracks and autoselect default if needed
            var id = 0
            tracks.forEach(function (track) {
              if (track.default) {
                _this2.audioTrack = id
                defaultFound = true
                return
              }
              id++
            })
            if (defaultFound === false && tracks.length) {
              _logger.logger.log('no default audio track defined, use first audio track as default')
              this.audioTrack = 0
            }
          }
        }, {
          key: 'onAudioTrackLoaded',
          value: function onAudioTrackLoaded (data) {
            if (data.id < this.tracks.length) {
              _logger.logger.log('audioTrack ' + data.id + ' loaded')
              this.tracks[data.id].details = data.details
              // check if current playlist is a live playlist
              if (data.details.live && !this.timer) {
              // if live playlist we will have to reload it periodically
              // set reload period to playlist target duration
                this.timer = setInterval(this.ontick, 1000 * data.details.targetduration)
              }
              if (!data.details.live && this.timer) {
              // playlist is not live and timer is armed : stopping it
                clearInterval(this.timer)
                this.timer = null
              }
            }
          }

          /** get alternate audio tracks list from playlist **/

        }, {
          key: 'setAudioTrackInternal',
          value: function setAudioTrackInternal (newId) {
          // check if level idx is valid
            if (newId >= 0 && newId < this.tracks.length) {
            // stopping live reloading timer if any
              if (this.timer) {
                clearInterval(this.timer)
                this.timer = null
              }
              this.trackId = newId
              _logger.logger.log('switching to audioTrack ' + newId)
              var audioTrack = this.tracks[newId]
              var hls = this.hls
              var type = audioTrack.type
              var url = audioTrack.url
              var eventObj = { id: newId, type: type, url: url }
              // keep AUDIO_TRACK_SWITCH for legacy reason
              hls.trigger(_events2.default.AUDIO_TRACK_SWITCH, eventObj)
              hls.trigger(_events2.default.AUDIO_TRACK_SWITCHING, eventObj)
              // check if we need to load playlist for this audio Track
              var details = audioTrack.details
              if (url && (details === undefined || details.live === true)) {
              // track not retrieved yet, or live playlist we need to (re)load it
                _logger.logger.log('(re)loading playlist for audioTrack ' + newId)
                hls.trigger(_events2.default.AUDIO_TRACK_LOADING, { url: url, id: newId })
              }
            }
          }
        }, {
          key: 'updateTrack',
          value: function updateTrack (newId) {
          // check if level idx is valid
            if (newId >= 0 && newId < this.tracks.length) {
            // stopping live reloading timer if any
              if (this.timer) {
                clearInterval(this.timer)
                this.timer = null
              }
              this.trackId = newId
              _logger.logger.log('updating audioTrack ' + newId)
              var audioTrack = this.tracks[newId]
              var url = audioTrack.url
              // check if we need to load playlist for this audio Track
              var details = audioTrack.details
              if (url && (details === undefined || details.live === true)) {
              // track not retrieved yet, or live playlist we need to (re)load it
                _logger.logger.log('(re)loading playlist for audioTrack ' + newId)
                this.hls.trigger(_events2.default.AUDIO_TRACK_LOADING, { url: url, id: newId })
              }
            }
          }
        }, {
          key: 'audioTracks',
          get: function get () {
            return this.tracks
          }

          /** get index of the selected audio track (index in audio track lists) **/

        }, {
          key: 'audioTrack',
          get: function get () {
            return this.trackId
          },
          /** select an audio track, based on its index in audio track lists**/

          set: function set (audioTrackId) {
            if (this.trackId !== audioTrackId || this.tracks[audioTrackId].details === undefined) {
              this.setAudioTrackInternal(audioTrackId)
            }
          }
        }])

        return AudioTrackController
      }(_eventHandler2.default))

      exports.default = AudioTrackController
    }, { 31: 31, 32: 32, 50: 50 }],
    8: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _eventHandler = _dereq_(31)

      var _eventHandler2 = _interopRequireDefault(_eventHandler)

      var _logger = _dereq_(50)

      var _errors = _dereq_(30)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      function _possibleConstructorReturn (self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called") } return call && (typeof call === 'object' || typeof call === 'function') ? call : self }

      function _inherits (subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass) } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass } /*
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * Buffer Controller
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               */

      var BufferController = (function (_EventHandler) {
        _inherits(BufferController, _EventHandler)

        function BufferController (hls) {
          _classCallCheck(this, BufferController)

          // the value that we have set mediasource.duration to
          // (the actual duration may be tweaked slighly by the browser)
          var _this = _possibleConstructorReturn(this, (BufferController.__proto__ || Object.getPrototypeOf(BufferController)).call(this, hls, _events2.default.MEDIA_ATTACHING, _events2.default.MEDIA_DETACHING, _events2.default.MANIFEST_PARSED, _events2.default.BUFFER_RESET, _events2.default.BUFFER_APPENDING, _events2.default.BUFFER_CODECS, _events2.default.BUFFER_EOS, _events2.default.BUFFER_FLUSHING, _events2.default.LEVEL_PTS_UPDATED, _events2.default.LEVEL_UPDATED))

          _this._msDuration = null
          // the value that we want to set mediaSource.duration to
          _this._levelDuration = null

          // Source Buffer listeners
          _this.onsbue = _this.onSBUpdateEnd.bind(_this)
          _this.onsbe = _this.onSBUpdateError.bind(_this)
          _this.pendingTracks = {}
          _this.tracks = {}
          return _this
        }

        _createClass(BufferController, [{
          key: 'destroy',
          value: function destroy () {
            _eventHandler2.default.prototype.destroy.call(this)
          }
        }, {
          key: 'onLevelPtsUpdated',
          value: function onLevelPtsUpdated (data) {
            var type = data.type
            var audioTrack = this.tracks.audio

            // Adjusting `SourceBuffer.timestampOffset` (desired point in the timeline where the next frames should be appended)
            // in Chrome browser when we detect MPEG audio container and time delta between level PTS and `SourceBuffer.timestampOffset`
            // is greater than 100ms (this is enough to handle seek for VOD or level change for LIVE videos). At the time of change we issue
            // `SourceBuffer.abort()` and adjusting `SourceBuffer.timestampOffset` if `SourceBuffer.updating` is false or awaiting `updateend`
            // event if SB is in updating state.
            // More info here: https://github.com/video-dev/hls.js/issues/332#issuecomment-257986486

            if (type === 'audio' && audioTrack && audioTrack.container === 'audio/mpeg') {
            // Chrome audio mp3 track
              var audioBuffer = this.sourceBuffer.audio
              var delta = Math.abs(audioBuffer.timestampOffset - data.start)

              // adjust timestamp offset if time delta is greater than 100ms
              if (delta > 0.1) {
                var updating = audioBuffer.updating

                try {
                  audioBuffer.abort()
                } catch (err) {
                  updating = true
                  _logger.logger.warn('can not abort audio buffer: ' + err)
                }

                if (!updating) {
                  _logger.logger.warn('change mpeg audio timestamp offset from ' + audioBuffer.timestampOffset + ' to ' + data.start)
                  audioBuffer.timestampOffset = data.start
                } else {
                  this.audioTimestampOffset = data.start
                }
              }
            }
          }
        }, {
          key: 'onManifestParsed',
          value: function onManifestParsed (data) {
            var audioExpected = data.audio
            var videoExpected = data.video
            var sourceBufferNb = 0
            // in case of alt audio 2 BUFFER_CODECS events will be triggered, one per stream controller
            // sourcebuffers will be created all at once when the expected nb of tracks will be reached
            // in case alt audio is not used, only one BUFFER_CODEC event will be fired from main stream controller
            // it will contain the expected nb of source buffers, no need to compute it
            if (data.altAudio && (audioExpected || videoExpected)) {
              sourceBufferNb = (audioExpected ? 1 : 0) + (videoExpected ? 1 : 0)
              _logger.logger.log(sourceBufferNb + ' sourceBuffer(s) expected')
            }
            this.sourceBufferNb = sourceBufferNb
          }
        }, {
          key: 'onMediaAttaching',
          value: function onMediaAttaching (data) {
            var media = this.media = data.media
            if (media) {
            // setup the media source
              var ms = this.mediaSource = new MediaSource()
              // Media Source listeners
              this.onmso = this.onMediaSourceOpen.bind(this)
              this.onmse = this.onMediaSourceEnded.bind(this)
              this.onmsc = this.onMediaSourceClose.bind(this)
              ms.addEventListener('sourceopen', this.onmso)
              ms.addEventListener('sourceended', this.onmse)
              ms.addEventListener('sourceclose', this.onmsc)
              // link video and media Source
              media.src = URL.createObjectURL(ms)
            }
          }
        }, {
          key: 'onMediaDetaching',
          value: function onMediaDetaching () {
            _logger.logger.log('media source detaching')
            var ms = this.mediaSource
            if (ms) {
              if (ms.readyState === 'open') {
                try {
                // endOfStream could trigger exception if any sourcebuffer is in updating state
                // we don't really care about checking sourcebuffer state here,
                // as we are anyway detaching the MediaSource
                // let's just avoid this exception to propagate
                  ms.endOfStream()
                } catch (err) {
                  _logger.logger.warn('onMediaDetaching:' + err.message + ' while calling endOfStream')
                }
              }
              ms.removeEventListener('sourceopen', this.onmso)
              ms.removeEventListener('sourceended', this.onmse)
              ms.removeEventListener('sourceclose', this.onmsc)

              // Detach properly the MediaSource from the HTMLMediaElement as
              // suggested in https://github.com/w3c/media-source/issues/53.
              if (this.media) {
                URL.revokeObjectURL(this.media.src)
                this.media.removeAttribute('src')
                this.media.load()
              }

              this.mediaSource = null
              this.media = null
              this.pendingTracks = {}
              this.tracks = {}
              this.sourceBuffer = {}
              this.flushRange = []
              this.segments = []
              this.appended = 0
            }
            this.onmso = this.onmse = this.onmsc = null
            this.hls.trigger(_events2.default.MEDIA_DETACHED)
          }
        }, {
          key: 'onMediaSourceOpen',
          value: function onMediaSourceOpen () {
            _logger.logger.log('media source opened')
            this.hls.trigger(_events2.default.MEDIA_ATTACHED, { media: this.media })
            var mediaSource = this.mediaSource
            if (mediaSource) {
            // once received, don't listen anymore to sourceopen event
              mediaSource.removeEventListener('sourceopen', this.onmso)
            }
            this.checkPendingTracks()
          }
        }, {
          key: 'checkPendingTracks',
          value: function checkPendingTracks () {
          // if any buffer codecs pending, check if we have enough to create sourceBuffers
            var pendingTracks = this.pendingTracks
            var pendingTracksNb = Object.keys(pendingTracks).length
            // if any pending tracks and (if nb of pending tracks gt or equal than expected nb or if unknown expected nb)
            if (pendingTracksNb && (this.sourceBufferNb <= pendingTracksNb || this.sourceBufferNb === 0)) {
            // ok, let's create them now !
              this.createSourceBuffers(pendingTracks)
              this.pendingTracks = {}
              // append any pending segments now !
              this.doAppending()
            }
          }
        }, {
          key: 'onMediaSourceClose',
          value: function onMediaSourceClose () {
            _logger.logger.log('media source closed')
          }
        }, {
          key: 'onMediaSourceEnded',
          value: function onMediaSourceEnded () {
            _logger.logger.log('media source ended')
          }
        }, {
          key: 'onSBUpdateEnd',
          value: function onSBUpdateEnd () {
          // update timestampOffset
            if (this.audioTimestampOffset) {
              var audioBuffer = this.sourceBuffer.audio
              _logger.logger.warn('change mpeg audio timestamp offset from ' + audioBuffer.timestampOffset + ' to ' + this.audioTimestampOffset)
              audioBuffer.timestampOffset = this.audioTimestampOffset
              delete this.audioTimestampOffset
            }

            if (this._needsFlush) {
              this.doFlush()
            }

            if (this._needsEos) {
              this.checkEos()
            }
            this.appending = false
            var parent = this.parent
            // count nb of pending segments waiting for appending on this sourcebuffer
            var pending = this.segments.reduce(function (counter, segment) {
              return segment.parent === parent ? counter + 1 : counter
            }, 0)
            this.hls.trigger(_events2.default.BUFFER_APPENDED, { parent: parent, pending: pending })

            // don't append in flushing mode
            if (!this._needsFlush) {
              this.doAppending()
            }

            this.updateMediaElementDuration()
          }
        }, {
          key: 'onSBUpdateError',
          value: function onSBUpdateError (event) {
            _logger.logger.error('sourceBuffer error:', event)
            // according to http://www.w3.org/TR/media-source/#sourcebuffer-append-error
            // this error might not always be fatal (it is fatal if decode error is set, in that case
            // it will be followed by a mediaElement error ...)
            this.hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.BUFFER_APPENDING_ERROR, fatal: false })
            // we don't need to do more than that, as accordin to the spec, updateend will be fired just after
          }
        }, {
          key: 'onBufferReset',
          value: function onBufferReset () {
            var sourceBuffer = this.sourceBuffer
            for (var type in sourceBuffer) {
              var sb = sourceBuffer[type]
              try {
                this.mediaSource.removeSourceBuffer(sb)
                sb.removeEventListener('updateend', this.onsbue)
                sb.removeEventListener('error', this.onsbe)
              } catch (err) {}
            }
            this.sourceBuffer = {}
            this.flushRange = []
            this.segments = []
            this.appended = 0
          }
        }, {
          key: 'onBufferCodecs',
          value: function onBufferCodecs (tracks) {
          // if source buffer(s) not created yet, appended buffer tracks in this.pendingTracks
          // if sourcebuffers already created, do nothing ...
            if (Object.keys(this.sourceBuffer).length === 0) {
              for (var trackName in tracks) {
                this.pendingTracks[trackName] = tracks[trackName]
              }
              var mediaSource = this.mediaSource
              if (mediaSource && mediaSource.readyState === 'open') {
              // try to create sourcebuffers if mediasource opened
                this.checkPendingTracks()
              }
            }
          }
        }, {
          key: 'createSourceBuffers',
          value: function createSourceBuffers (tracks) {
            var sourceBuffer = this.sourceBuffer
            var mediaSource = this.mediaSource

            for (var trackName in tracks) {
              if (!sourceBuffer[trackName]) {
                var track = tracks[trackName]
                // use levelCodec as first priority
                var codec = track.levelCodec || track.codec
                var mimeType = track.container + ';codecs=' + codec
                _logger.logger.log('creating sourceBuffer(' + mimeType + ')')
                try {
                  var sb = sourceBuffer[trackName] = mediaSource.addSourceBuffer(mimeType)
                  sb.addEventListener('updateend', this.onsbue)
                  sb.addEventListener('error', this.onsbe)
                  this.tracks[trackName] = { codec: codec, container: track.container }
                  track.buffer = sb
                } catch (err) {
                  _logger.logger.error('error while trying to add sourceBuffer:' + err.message)
                  this.hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.BUFFER_ADD_CODEC_ERROR, fatal: false, err: err, mimeType: mimeType })
                }
              }
            }
            this.hls.trigger(_events2.default.BUFFER_CREATED, { tracks: tracks })
          }
        }, {
          key: 'onBufferAppending',
          value: function onBufferAppending (data) {
            if (!this._needsFlush) {
              if (!this.segments) {
                this.segments = [data]
              } else {
                this.segments.push(data)
              }
              this.doAppending()
            }
          }
        }, {
          key: 'onBufferAppendFail',
          value: function onBufferAppendFail (data) {
            _logger.logger.error('sourceBuffer error:', data.event)
            // according to http://www.w3.org/TR/media-source/#sourcebuffer-append-error
            // this error might not always be fatal (it is fatal if decode error is set, in that case
            // it will be followed by a mediaElement error ...)
            this.hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.BUFFER_APPENDING_ERROR, fatal: false })
          }

          // on BUFFER_EOS mark matching sourcebuffer(s) as ended and trigger checkEos()

        }, {
          key: 'onBufferEos',
          value: function onBufferEos (data) {
            var sb = this.sourceBuffer
            var dataType = data.type
            for (var type in sb) {
              if (!dataType || type === dataType) {
                if (!sb[type].ended) {
                  sb[type].ended = true
                  _logger.logger.log(type + ' sourceBuffer now EOS')
                }
              }
            }
            this.checkEos()
          }

          // if all source buffers are marked as ended, signal endOfStream() to MediaSource.

        }, {
          key: 'checkEos',
          value: function checkEos () {
            var sb = this.sourceBuffer
            var mediaSource = this.mediaSource
            if (!mediaSource || mediaSource.readyState !== 'open') {
              this._needsEos = false
              return
            }
            for (var type in sb) {
              var sbobj = sb[type]
              if (!sbobj.ended) {
                return
              }
              if (sbobj.updating) {
                this._needsEos = true
                return
              }
            }
            _logger.logger.log('all media data available, signal endOfStream() to MediaSource and stop loading fragment')
            // Notify the media element that it now has all of the media data
            try {
              mediaSource.endOfStream()
            } catch (e) {
              _logger.logger.warn('exception while calling mediaSource.endOfStream()')
            }
            this._needsEos = false
          }
        }, {
          key: 'onBufferFlushing',
          value: function onBufferFlushing (data) {
            this.flushRange.push({ start: data.startOffset, end: data.endOffset, type: data.type })
            // attempt flush immediatly
            this.flushBufferCounter = 0
            this.doFlush()
          }
        }, {
          key: 'onLevelUpdated',
          value: function onLevelUpdated (event) {
            var details = event.details
            if (details.fragments.length === 0) {
              return
            }
            this._levelDuration = details.totalduration + details.fragments[0].start
            this.updateMediaElementDuration()
          }

          // https://github.com/video-dev/hls.js/issues/355

        }, {
          key: 'updateMediaElementDuration',
          value: function updateMediaElementDuration () {
            var media = this.media
            var mediaSource = this.mediaSource
            var sourceBuffer = this.sourceBuffer
            var levelDuration = this._levelDuration
            if (levelDuration === null || !media || !mediaSource || !sourceBuffer || media.readyState === 0 || mediaSource.readyState !== 'open') {
              return
            }
            for (var type in sourceBuffer) {
              if (sourceBuffer[type].updating) {
              // can't set duration whilst a buffer is updating
                return
              }
            }
            if (this._msDuration === null) {
            // initialise to the value that the media source is reporting
              this._msDuration = mediaSource.duration
            }
            var duration = media.duration
            // levelDuration was the last value we set.
            // not using mediaSource.duration as the browser may tweak this value
            // only update mediasource duration if its value increase, this is to avoid
            // flushing already buffered portion when switching between quality level
            if (levelDuration > this._msDuration && levelDuration > duration || duration === Infinity || isNaN(duration)) {
              _logger.logger.log('Updating mediasource duration to ' + levelDuration.toFixed(3))
              this._msDuration = mediaSource.duration = levelDuration
            }
          }
        }, {
          key: 'doFlush',
          value: function doFlush () {
          // loop through all buffer ranges to flush
            while (this.flushRange.length) {
              var range = this.flushRange[0]
              // flushBuffer will abort any buffer append in progress and flush Audio/Video Buffer
              if (this.flushBuffer(range.start, range.end, range.type)) {
              // range flushed, remove from flush array
                this.flushRange.shift()
                this.flushBufferCounter = 0
              } else {
                this._needsFlush = true
                // avoid looping, wait for SB update end to retrigger a flush
                return
              }
            }
            if (this.flushRange.length === 0) {
            // everything flushed
              this._needsFlush = false

              // let's recompute this.appended, which is used to avoid flush looping
              var appended = 0
              var sourceBuffer = this.sourceBuffer
              try {
                for (var type in sourceBuffer) {
                  appended += sourceBuffer[type].buffered.length
                }
              } catch (error) {
              // error could be thrown while accessing buffered, in case sourcebuffer has already been removed from MediaSource
              // this is harmess at this stage, catch this to avoid reporting an internal exception
                _logger.logger.error('error while accessing sourceBuffer.buffered')
              }
              this.appended = appended
              this.hls.trigger(_events2.default.BUFFER_FLUSHED)
            }
          }
        }, {
          key: 'doAppending',
          value: function doAppending () {
            var hls = this.hls
            var sourceBuffer = this.sourceBuffer
            var segments = this.segments
            if (Object.keys(sourceBuffer).length) {
              if (this.media.error) {
                this.segments = []
                _logger.logger.error('trying to append although a media error occured, flush segment and abort')
                return
              }
              if (this.appending) {
                // logger.log(`sb appending in progress`);
                return
              }
              if (segments && segments.length) {
                var segment = segments.shift()
                try {
                  var type = segment.type
                  var sb = sourceBuffer[type]
                  if (sb) {
                    if (!sb.updating) {
                      // reset sourceBuffer ended flag before appending segment
                      sb.ended = false
                      // logger.log(`appending ${segment.content} ${type} SB, size:${segment.data.length}, ${segment.parent}`);
                      this.parent = segment.parent
                      sb.appendBuffer(segment.data)
                      this.appendError = 0
                      this.appended++
                      this.appending = true
                    } else {
                      segments.unshift(segment)
                    }
                  } else {
                    // in case we don't have any source buffer matching with this segment type,
                    // it means that Mediasource fails to create sourcebuffer
                    // discard this segment, and trigger update end
                    this.onSBUpdateEnd()
                  }
                } catch (err) {
                  // in case any error occured while appending, put back segment in segments table
                  _logger.logger.error('error while trying to append buffer:' + err.message)
                  segments.unshift(segment)
                  var event = { type: _errors.ErrorTypes.MEDIA_ERROR, parent: segment.parent }
                  if (err.code !== 22) {
                    if (this.appendError) {
                      this.appendError++
                    } else {
                      this.appendError = 1
                    }
                    event.details = _errors.ErrorDetails.BUFFER_APPEND_ERROR
                    /* with UHD content, we could get loop of quota exceeded error until
                browser is able to evict some data from sourcebuffer. retrying help recovering this
              */
                    if (this.appendError > hls.config.appendErrorMaxRetry) {
                      _logger.logger.log('fail ' + hls.config.appendErrorMaxRetry + ' times to append segment in sourceBuffer')
                      segments = []
                      event.fatal = true
                      hls.trigger(_events2.default.ERROR, event)
                    } else {
                      event.fatal = false
                      hls.trigger(_events2.default.ERROR, event)
                    }
                  } else {
                    // QuotaExceededError: http://www.w3.org/TR/html5/infrastructure.html#quotaexceedederror
                    // let's stop appending any segments, and report BUFFER_FULL_ERROR error
                    this.segments = []
                    event.details = _errors.ErrorDetails.BUFFER_FULL_ERROR
                    event.fatal = false
                    hls.trigger(_events2.default.ERROR, event)
                  }
                }
              }
            }
          }

          /*
      flush specified buffered range,
      return true once range has been flushed.
      as sourceBuffer.remove() is asynchronous, flushBuffer will be retriggered on sourceBuffer update end
    */

        }, {
          key: 'flushBuffer',
          value: function flushBuffer (startOffset, endOffset, typeIn) {
            var sb
            var i
            var bufStart
            var bufEnd
            var flushStart
            var flushEnd
            var sourceBuffer = this.sourceBuffer
            if (Object.keys(sourceBuffer).length) {
              _logger.logger.log('flushBuffer,pos/start/end: ' + this.media.currentTime.toFixed(3) + '/' + startOffset + '/' + endOffset)
              // safeguard to avoid infinite looping : don't try to flush more than the nb of appended segments
              if (this.flushBufferCounter < this.appended) {
                for (var type in sourceBuffer) {
                // check if sourcebuffer type is defined (typeIn): if yes, let's only flush this one
                // if no, let's flush all sourcebuffers
                  if (typeIn && type !== typeIn) {
                    continue
                  }
                  sb = sourceBuffer[type]
                  // we are going to flush buffer, mark source buffer as 'not ended'
                  sb.ended = false
                  if (!sb.updating) {
                    try {
                      for (i = 0; i < sb.buffered.length; i++) {
                        bufStart = sb.buffered.start(i)
                        bufEnd = sb.buffered.end(i)
                        // workaround firefox not able to properly flush multiple buffered range.
                        if (navigator.userAgent.toLowerCase().indexOf('firefox') !== -1 && endOffset === Number.POSITIVE_INFINITY) {
                          flushStart = startOffset
                          flushEnd = endOffset
                        } else {
                          flushStart = Math.max(bufStart, startOffset)
                          flushEnd = Math.min(bufEnd, endOffset)
                        }
                        /* sometimes sourcebuffer.remove() does not flush
                     the exact expected time range.
                     to avoid rounding issues/infinite loop,
                     only flush buffer range of length greater than 500ms.
                  */
                        if (Math.min(flushEnd, bufEnd) - flushStart > 0.5) {
                          this.flushBufferCounter++
                          _logger.logger.log('flush ' + type + ' [' + flushStart + ',' + flushEnd + '], of [' + bufStart + ',' + bufEnd + '], pos:' + this.media.currentTime)
                          sb.remove(flushStart, flushEnd)
                          return false
                        }
                      }
                    } catch (e) {
                      _logger.logger.warn('exception while accessing sourcebuffer, it might have been removed from MediaSource')
                    }
                  } else {
                  // logger.log('abort ' + type + ' append in progress');
                  // this will abort any appending in progress
                  // sb.abort();
                    _logger.logger.warn('cannot flush, sb updating in progress')
                    return false
                  }
                }
              } else {
                _logger.logger.warn('abort flushing too many retries')
              }
              _logger.logger.log('buffer flushed')
            }
            // everything flushed !
            return true
          }
        }])

        return BufferController
      }(_eventHandler2.default))

      exports.default = BufferController
    }, { 30: 30, 31: 31, 32: 32, 50: 50 }],
    9: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _eventHandler = _dereq_(31)

      var _eventHandler2 = _interopRequireDefault(_eventHandler)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      function _possibleConstructorReturn (self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called") } return call && (typeof call === 'object' || typeof call === 'function') ? call : self }

      function _inherits (subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass) } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass } /*
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * cap stream level to media size dimension controller
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               */

      var CapLevelController = (function (_EventHandler) {
        _inherits(CapLevelController, _EventHandler)

        function CapLevelController (hls) {
          _classCallCheck(this, CapLevelController)

          return _possibleConstructorReturn(this, (CapLevelController.__proto__ || Object.getPrototypeOf(CapLevelController)).call(this, hls, _events2.default.FPS_DROP_LEVEL_CAPPING, _events2.default.MEDIA_ATTACHING, _events2.default.MANIFEST_PARSED))
        }

        _createClass(CapLevelController, [{
          key: 'destroy',
          value: function destroy () {
            if (this.hls.config.capLevelToPlayerSize) {
              this.media = this.restrictedLevels = null
              this.autoLevelCapping = Number.POSITIVE_INFINITY
              if (this.timer) {
                this.timer = clearInterval(this.timer)
              }
            }
          }
        }, {
          key: 'onFpsDropLevelCapping',
          value: function onFpsDropLevelCapping (data) {
            if (!this.restrictedLevels) {
              this.restrictedLevels = []
            }
            if (!this.isLevelRestricted(data.droppedLevel)) {
              this.restrictedLevels.push(data.droppedLevel)
            }
          }
        }, {
          key: 'onMediaAttaching',
          value: function onMediaAttaching (data) {
            this.media = data.media instanceof HTMLVideoElement ? data.media : null
          }
        }, {
          key: 'onManifestParsed',
          value: function onManifestParsed (data) {
            var hls = this.hls
            if (hls.config.capLevelToPlayerSize) {
              this.autoLevelCapping = Number.POSITIVE_INFINITY
              this.levels = data.levels
              hls.firstLevel = this.getMaxLevel(data.firstLevel)
              clearInterval(this.timer)
              this.timer = setInterval(this.detectPlayerSize.bind(this), 1000)
              this.detectPlayerSize()
            }
          }
        }, {
          key: 'detectPlayerSize',
          value: function detectPlayerSize () {
            if (this.media) {
              var levelsLength = this.levels ? this.levels.length : 0
              if (levelsLength) {
                var hls = this.hls
                hls.autoLevelCapping = this.getMaxLevel(levelsLength - 1)
                if (hls.autoLevelCapping > this.autoLevelCapping) {
                // if auto level capping has a higher value for the previous one, flush the buffer using nextLevelSwitch
                // usually happen when the user go to the fullscreen mode.
                  hls.streamController.nextLevelSwitch()
                }
                this.autoLevelCapping = hls.autoLevelCapping
              }
            }
          }

          /*
    * returns level should be the one with the dimensions equal or greater than the media (player) dimensions (so the video will be downscaled)
    */

        }, {
          key: 'getMaxLevel',
          value: function getMaxLevel (capLevelIndex) {
            var result = 0
            var i = void 0
            var level = void 0
            var mWidth = this.mediaWidth
            var mHeight = this.mediaHeight
            var lWidth = 0
            var lHeight = 0

            for (i = 0; i <= capLevelIndex; i++) {
              level = this.levels[i]
              if (this.isLevelRestricted(i)) {
                break
              }
              result = i
              lWidth = level.width
              lHeight = level.height
              if (mWidth <= lWidth || mHeight <= lHeight) {
                break
              }
            }
            return result
          }
        }, {
          key: 'isLevelRestricted',
          value: function isLevelRestricted (level) {
            return !!(this.restrictedLevels && this.restrictedLevels.indexOf(level) !== -1)
          }
        }, {
          key: 'contentScaleFactor',
          get: function get () {
            var pixelRatio = 1
            try {
              pixelRatio = window.devicePixelRatio
            } catch (e) {}
            return pixelRatio
          }
        }, {
          key: 'mediaWidth',
          get: function get () {
            var width = void 0
            var media = this.media
            if (media) {
              width = media.width || media.clientWidth || media.offsetWidth
              width *= this.contentScaleFactor
            }
            return width
          }
        }, {
          key: 'mediaHeight',
          get: function get () {
            var height = void 0
            var media = this.media
            if (media) {
              height = media.height || media.clientHeight || media.offsetHeight
              height *= this.contentScaleFactor
            }
            return height
          }
        }])

        return CapLevelController
      }(_eventHandler2.default))

      exports.default = CapLevelController
    }, { 31: 31, 32: 32 }],
    10: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _eventHandler = _dereq_(31)

      var _eventHandler2 = _interopRequireDefault(_eventHandler)

      var _logger = _dereq_(50)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      function _possibleConstructorReturn (self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called") } return call && (typeof call === 'object' || typeof call === 'function') ? call : self }

      function _inherits (subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass) } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass } /*
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * FPS Controller
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               */

      var FPSController = (function (_EventHandler) {
        _inherits(FPSController, _EventHandler)

        function FPSController (hls) {
          _classCallCheck(this, FPSController)

          return _possibleConstructorReturn(this, (FPSController.__proto__ || Object.getPrototypeOf(FPSController)).call(this, hls, _events2.default.MEDIA_ATTACHING))
        }

        _createClass(FPSController, [{
          key: 'destroy',
          value: function destroy () {
            if (this.timer) {
              clearInterval(this.timer)
            }
            this.isVideoPlaybackQualityAvailable = false
          }
        }, {
          key: 'onMediaAttaching',
          value: function onMediaAttaching (data) {
            var config = this.hls.config
            if (config.capLevelOnFPSDrop) {
              var video = this.video = data.media instanceof HTMLVideoElement ? data.media : null
              if (typeof video.getVideoPlaybackQuality === 'function') {
                this.isVideoPlaybackQualityAvailable = true
              }
              clearInterval(this.timer)
              this.timer = setInterval(this.checkFPSInterval.bind(this), config.fpsDroppedMonitoringPeriod)
            }
          }
        }, {
          key: 'checkFPS',
          value: function checkFPS (video, decodedFrames, droppedFrames) {
            var currentTime = performance.now()
            if (decodedFrames) {
              if (this.lastTime) {
                var currentPeriod = currentTime - this.lastTime
                var currentDropped = droppedFrames - this.lastDroppedFrames
                var currentDecoded = decodedFrames - this.lastDecodedFrames
                var droppedFPS = 1000 * currentDropped / currentPeriod
                var hls = this.hls
                hls.trigger(_events2.default.FPS_DROP, { currentDropped: currentDropped, currentDecoded: currentDecoded, totalDroppedFrames: droppedFrames })
                if (droppedFPS > 0) {
                // logger.log('checkFPS : droppedFPS/decodedFPS:' + droppedFPS/(1000 * currentDecoded / currentPeriod));
                  if (currentDropped > hls.config.fpsDroppedMonitoringThreshold * currentDecoded) {
                    var currentLevel = hls.currentLevel
                    _logger.logger.warn('drop FPS ratio greater than max allowed value for currentLevel: ' + currentLevel)
                    if (currentLevel > 0 && (hls.autoLevelCapping === -1 || hls.autoLevelCapping >= currentLevel)) {
                      currentLevel = currentLevel - 1
                      hls.trigger(_events2.default.FPS_DROP_LEVEL_CAPPING, { level: currentLevel, droppedLevel: hls.currentLevel })
                      hls.autoLevelCapping = currentLevel
                      hls.streamController.nextLevelSwitch()
                    }
                  }
                }
              }
              this.lastTime = currentTime
              this.lastDroppedFrames = droppedFrames
              this.lastDecodedFrames = decodedFrames
            }
          }
        }, {
          key: 'checkFPSInterval',
          value: function checkFPSInterval () {
            var video = this.video
            if (video) {
              if (this.isVideoPlaybackQualityAvailable) {
                var videoPlaybackQuality = video.getVideoPlaybackQuality()
                this.checkFPS(video, videoPlaybackQuality.totalVideoFrames, videoPlaybackQuality.droppedVideoFrames)
              } else {
                this.checkFPS(video, video.webkitDecodedFrameCount, video.webkitDroppedFrameCount)
              }
            }
          }
        }])

        return FPSController
      }(_eventHandler2.default))

      exports.default = FPSController
    }, { 31: 31, 32: 32, 50: 50 }],
    11: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _eventHandler = _dereq_(31)

      var _eventHandler2 = _interopRequireDefault(_eventHandler)

      var _logger = _dereq_(50)

      var _errors = _dereq_(30)

      var _bufferHelper = _dereq_(34)

      var _bufferHelper2 = _interopRequireDefault(_bufferHelper)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      function _possibleConstructorReturn (self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called") } return call && (typeof call === 'object' || typeof call === 'function') ? call : self }

      function _inherits (subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass) } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass } /*
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * Level Controller
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               */

      var LevelController = (function (_EventHandler) {
        _inherits(LevelController, _EventHandler)

        function LevelController (hls) {
          _classCallCheck(this, LevelController)

          var _this = _possibleConstructorReturn(this, (LevelController.__proto__ || Object.getPrototypeOf(LevelController)).call(this, hls, _events2.default.MANIFEST_LOADED, _events2.default.LEVEL_LOADED, _events2.default.FRAG_LOADED, _events2.default.ERROR))

          _this.ontick = _this.tick.bind(_this)
          _this._manualLevel = -1
          return _this
        }

        _createClass(LevelController, [{
          key: 'destroy',
          value: function destroy () {
            if (this.timer) {
              clearTimeout(this.timer)
              this.timer = null
            }
            this._manualLevel = -1
          }
        }, {
          key: 'startLoad',
          value: function startLoad () {
            this.canload = true
            var levels = this._levels
            // clean up live level details to force reload them, and reset load errors
            if (levels) {
              levels.forEach(function (level) {
                level.loadError = 0
                var levelDetails = level.details
                if (levelDetails && levelDetails.live) {
                  level.details = undefined
                }
              })
            }
            // speed up live playlist refresh if timer exists
            if (this.timer) {
              this.tick()
            }
          }
        }, {
          key: 'stopLoad',
          value: function stopLoad () {
            this.canload = false
          }
        }, {
          key: 'onManifestLoaded',
          value: function onManifestLoaded (data) {
            var levels0 = []
            var levels = []
            var bitrateStart
            var bitrateSet = {}
            var videoCodecFound = false
            var audioCodecFound = false
            var hls = this.hls
            var brokenmp4inmp3 = /chrome|firefox/.test(navigator.userAgent.toLowerCase())
            var checkSupported = function checkSupported (type, codec) {
              return MediaSource.isTypeSupported(type + '/mp4;codecs=' + codec)
            }

            // regroup redundant level together
            data.levels.forEach(function (level) {
              if (level.videoCodec) {
                videoCodecFound = true
              }
              // erase audio codec info if browser does not support mp4a.40.34. demuxer will autodetect codec and fallback to mpeg/audio
              if (brokenmp4inmp3 && level.audioCodec && level.audioCodec.indexOf('mp4a.40.34') !== -1) {
                level.audioCodec = undefined
              }
              if (level.audioCodec || level.attrs && level.attrs.AUDIO) {
                audioCodecFound = true
              }
              var redundantLevelId = bitrateSet[level.bitrate]
              if (redundantLevelId === undefined) {
                bitrateSet[level.bitrate] = levels0.length
                level.url = [level.url]
                level.urlId = 0
                levels0.push(level)
              } else {
                levels0[redundantLevelId].url.push(level.url)
              }
            })

            // remove audio-only level if we also have levels with audio+video codecs signalled
            if (videoCodecFound && audioCodecFound) {
              levels0.forEach(function (level) {
                if (level.videoCodec) {
                  levels.push(level)
                }
              })
            } else {
              levels = levels0
            }
            // only keep level with supported audio/video codecs
            levels = levels.filter(function (level) {
              var audioCodec = level.audioCodec
              var videoCodec = level.videoCodec
              return (!audioCodec || checkSupported('audio', audioCodec)) && (!videoCodec || checkSupported('video', videoCodec))
            })

            if (levels.length) {
              // start bitrate is the first bitrate of the manifest
              bitrateStart = levels[0].bitrate
              // sort level on bitrate
              levels.sort(function (a, b) {
                return a.bitrate - b.bitrate
              })
              this._levels = levels
              // find index of first level in sorted levels
              for (var i = 0; i < levels.length; i++) {
                if (levels[i].bitrate === bitrateStart) {
                  this._firstLevel = i
                  _logger.logger.log('manifest loaded,' + levels.length + ' level(s) found, first bitrate:' + bitrateStart)
                  break
                }
              }
              hls.trigger(_events2.default.MANIFEST_PARSED, { levels: levels, firstLevel: this._firstLevel, stats: data.stats, audio: audioCodecFound, video: videoCodecFound, altAudio: data.audioTracks.length > 0 })
            } else {
              hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.MANIFEST_INCOMPATIBLE_CODECS_ERROR, fatal: true, url: hls.url, reason: 'no level with compatible codecs found in manifest' })
            }
          }
        }, {
          key: 'setLevelInternal',
          value: function setLevelInternal (newLevel) {
            var levels = this._levels
            var hls = this.hls
            // check if level idx is valid
            if (newLevel >= 0 && newLevel < levels.length) {
            // stopping live reloading timer if any
              if (this.timer) {
                clearTimeout(this.timer)
                this.timer = null
              }
              if (this._level !== newLevel) {
                _logger.logger.log('switching to level ' + newLevel)
                this._level = newLevel
                var levelProperties = levels[newLevel]
                levelProperties.level = newLevel
                // LEVEL_SWITCH to be deprecated in next major release
                hls.trigger(_events2.default.LEVEL_SWITCH, levelProperties)
                hls.trigger(_events2.default.LEVEL_SWITCHING, levelProperties)
              }
              var level = levels[newLevel]
              var levelDetails = level.details
              // check if we need to load playlist for this level
              if (!levelDetails || levelDetails.live === true) {
              // level not retrieved yet, or live playlist we need to (re)load it
                var urlId = level.urlId
                hls.trigger(_events2.default.LEVEL_LOADING, { url: level.url[urlId], level: newLevel, id: urlId })
              }
            } else {
            // invalid level id given, trigger error
              hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.OTHER_ERROR, details: _errors.ErrorDetails.LEVEL_SWITCH_ERROR, level: newLevel, fatal: false, reason: 'invalid level idx' })
            }
          }
        }, {
          key: 'onError',
          value: function onError (data) {
            if (data.fatal) {
              return
            }

            var details = data.details
            var hls = this.hls
            var levelId = void 0
            var level = void 0
            var levelError = false
            // try to recover not fatal errors
            switch (details) {
              case _errors.ErrorDetails.FRAG_LOAD_ERROR:
              case _errors.ErrorDetails.FRAG_LOAD_TIMEOUT:
              case _errors.ErrorDetails.FRAG_LOOP_LOADING_ERROR:
              case _errors.ErrorDetails.KEY_LOAD_ERROR:
              case _errors.ErrorDetails.KEY_LOAD_TIMEOUT:
                levelId = data.frag.level
                break
              case _errors.ErrorDetails.LEVEL_LOAD_ERROR:
              case _errors.ErrorDetails.LEVEL_LOAD_TIMEOUT:
                levelId = data.context.level
                levelError = true
                break
              case _errors.ErrorDetails.REMUX_ALLOC_ERROR:
                levelId = data.level
                break
              default:
                break
            }
            /* try to switch to a redundant stream if any available.
       * if no redundant stream available, emergency switch down (if in auto mode and current level not 0)
       * otherwise, we cannot recover this network error ...
       */
            if (levelId !== undefined) {
              level = this._levels[levelId]
              if (!level.loadError) {
                level.loadError = 1
              } else {
                level.loadError++
              }
              // if any redundant streams available and if we haven't try them all (level.loadError is reseted on successful frag/level load.
              // if level.loadError reaches nbRedundantLevel it means that we tried them all, no hope  => let's switch down
              var nbRedundantLevel = level.url.length
              if (nbRedundantLevel > 1 && level.loadError < nbRedundantLevel) {
                level.urlId = (level.urlId + 1) % nbRedundantLevel
                level.details = undefined
                _logger.logger.warn('level controller,' + details + ' for level ' + levelId + ': switching to redundant stream id ' + level.urlId)
              } else {
              // we could try to recover if in auto mode and current level not lowest level (0)
                var recoverable = this._manualLevel === -1 && levelId
                if (recoverable) {
                  _logger.logger.warn('level controller,' + details + ': switch-down for next fragment')
                  hls.nextAutoLevel = Math.max(0, levelId - 1)
                } else if (level && level.details && level.details.live) {
                  _logger.logger.warn('level controller,' + details + ' on live stream, discard')
                  if (levelError) {
                  // reset this._level so that another call to set level() will retrigger a frag load
                    this._level = undefined
                  }
                // other errors are handled by stream controller
                } else if (details === _errors.ErrorDetails.LEVEL_LOAD_ERROR || details === _errors.ErrorDetails.LEVEL_LOAD_TIMEOUT) {
                  var media = hls.media

                  // 0.5 : tolerance needed as some browsers stalls playback before reaching buffered end
                  var mediaBuffered = media && _bufferHelper2.default.isBuffered(media, media.currentTime) && _bufferHelper2.default.isBuffered(media, media.currentTime + 0.5)
                  if (mediaBuffered) {
                    var retryDelay = hls.config.levelLoadingRetryDelay
                    _logger.logger.warn('level controller,' + details + ', but media buffered, retry in ' + retryDelay + 'ms')
                    this.timer = setTimeout(this.ontick, retryDelay)
                  } else {
                    _logger.logger.error('cannot recover ' + details + ' error')
                    this._level = undefined
                    // stopping live reloading timer if any
                    if (this.timer) {
                      clearTimeout(this.timer)
                      this.timer = null
                    }
                    // switch error to fatal
                    data.fatal = true
                  }
                }
              }
            }
          }

          // reset level load error counter on successful frag loaded

        }, {
          key: 'onFragLoaded',
          value: function onFragLoaded (data) {
            var fragLoaded = data.frag
            if (fragLoaded && fragLoaded.type === 'main') {
              var level = this._levels[fragLoaded.level]
              if (level) {
                level.loadError = 0
              }
            }
          }
        }, {
          key: 'onLevelLoaded',
          value: function onLevelLoaded (data) {
            var levelId = data.level
            // only process level loaded events matching with expected level
            if (levelId === this._level) {
              var curLevel = this._levels[levelId]
              // reset level load error counter on successful level loaded
              curLevel.loadError = 0
              var newDetails = data.details
              // if current playlist is a live playlist, arm a timer to reload it
              if (newDetails.live) {
                var reloadInterval = 1000 * (newDetails.averagetargetduration ? newDetails.averagetargetduration : newDetails.targetduration)
                var curDetails = curLevel.details
                if (curDetails && newDetails.endSN === curDetails.endSN) {
                // follow HLS Spec, If the client reloads a Playlist file and finds that it has not
                // changed then it MUST wait for a period of one-half the target
                // duration before retrying.
                  reloadInterval /= 2
                  _logger.logger.log('same live playlist, reload twice faster')
                }
                // decrement reloadInterval with level loading delay
                reloadInterval -= performance.now() - data.stats.trequest
                // in any case, don't reload more than every second
                reloadInterval = Math.max(1000, Math.round(reloadInterval))
                _logger.logger.log('live playlist, reload in ' + reloadInterval + ' ms')
                this.timer = setTimeout(this.ontick, reloadInterval)
              } else {
                this.timer = null
              }
            }
          }
        }, {
          key: 'tick',
          value: function tick () {
            var levelId = this._level
            if (levelId !== undefined && this.canload) {
              var level = this._levels[levelId]
              if (level && level.url) {
                var urlId = level.urlId
                this.hls.trigger(_events2.default.LEVEL_LOADING, { url: level.url[urlId], level: levelId, id: urlId })
              }
            }
          }
        }, {
          key: 'levels',
          get: function get () {
            return this._levels
          }
        }, {
          key: 'level',
          get: function get () {
            return this._level
          },
          set: function set (newLevel) {
            var levels = this._levels
            if (levels && levels.length > newLevel) {
              if (this._level !== newLevel || levels[newLevel].details === undefined) {
                this.setLevelInternal(newLevel)
              }
            }
          }
        }, {
          key: 'manualLevel',
          get: function get () {
            return this._manualLevel
          },
          set: function set (newLevel) {
            this._manualLevel = newLevel
            if (this._startLevel === undefined) {
              this._startLevel = newLevel
            }
            if (newLevel !== -1) {
              this.level = newLevel
            }
          }
        }, {
          key: 'firstLevel',
          get: function get () {
            return this._firstLevel
          },
          set: function set (newLevel) {
            this._firstLevel = newLevel
          }
        }, {
          key: 'startLevel',
          get: function get () {
          // hls.startLevel takes precedence over config.startLevel
          // if none of these values are defined, fallback on this._firstLevel (first quality level appearing in variant manifest)
            if (this._startLevel === undefined) {
              var configStartLevel = this.hls.config.startLevel
              if (configStartLevel !== undefined) {
                return configStartLevel
              } else {
                return this._firstLevel
              }
            } else {
              return this._startLevel
            }
          },
          set: function set (newLevel) {
            this._startLevel = newLevel
          }
        }, {
          key: 'nextLoadLevel',
          get: function get () {
            if (this._manualLevel !== -1) {
              return this._manualLevel
            } else {
              return this.hls.nextAutoLevel
            }
          },
          set: function set (nextLevel) {
            this.level = nextLevel
            if (this._manualLevel === -1) {
              this.hls.nextAutoLevel = nextLevel
            }
          }
        }])

        return LevelController
      }(_eventHandler2.default))

      exports.default = LevelController
    }, { 30: 30, 31: 31, 32: 32, 34: 34, 50: 50 }],
    12: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      var _binarySearch = _dereq_(45)

      var _binarySearch2 = _interopRequireDefault(_binarySearch)

      var _bufferHelper = _dereq_(34)

      var _bufferHelper2 = _interopRequireDefault(_bufferHelper)

      var _demuxer = _dereq_(24)

      var _demuxer2 = _interopRequireDefault(_demuxer)

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _eventHandler = _dereq_(31)

      var _eventHandler2 = _interopRequireDefault(_eventHandler)

      var _levelHelper = _dereq_(35)

      var _levelHelper2 = _interopRequireDefault(_levelHelper)

      var _timeRanges = _dereq_(51)

      var _timeRanges2 = _interopRequireDefault(_timeRanges)

      var _errors = _dereq_(30)

      var _logger = _dereq_(50)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      function _possibleConstructorReturn (self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called") } return call && (typeof call === 'object' || typeof call === 'function') ? call : self }

      function _inherits (subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass) } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass } /*
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * Stream Controller
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               */

      var State = {
        STOPPED: 'STOPPED',
        IDLE: 'IDLE',
        KEY_LOADING: 'KEY_LOADING',
        FRAG_LOADING: 'FRAG_LOADING',
        FRAG_LOADING_WAITING_RETRY: 'FRAG_LOADING_WAITING_RETRY',
        WAITING_LEVEL: 'WAITING_LEVEL',
        PARSING: 'PARSING',
        PARSED: 'PARSED',
        BUFFER_FLUSHING: 'BUFFER_FLUSHING',
        ENDED: 'ENDED',
        ERROR: 'ERROR'
      }

      var StreamController = (function (_EventHandler) {
        _inherits(StreamController, _EventHandler)

        function StreamController (hls) {
          _classCallCheck(this, StreamController)

          var _this = _possibleConstructorReturn(this, (StreamController.__proto__ || Object.getPrototypeOf(StreamController)).call(this, hls, _events2.default.MEDIA_ATTACHED, _events2.default.MEDIA_DETACHING, _events2.default.MANIFEST_LOADING, _events2.default.MANIFEST_PARSED, _events2.default.LEVEL_LOADED, _events2.default.KEY_LOADED, _events2.default.FRAG_LOADED, _events2.default.FRAG_LOAD_EMERGENCY_ABORTED, _events2.default.FRAG_PARSING_INIT_SEGMENT, _events2.default.FRAG_PARSING_DATA, _events2.default.FRAG_PARSED, _events2.default.ERROR, _events2.default.AUDIO_TRACK_SWITCHING, _events2.default.AUDIO_TRACK_SWITCHED, _events2.default.BUFFER_CREATED, _events2.default.BUFFER_APPENDED, _events2.default.BUFFER_FLUSHED))

          _this.config = hls.config
          _this.audioCodecSwap = false
          _this.ticks = 0
          _this._state = State.STOPPED
          _this.ontick = _this.tick.bind(_this)
          return _this
        }

        _createClass(StreamController, [{
          key: 'destroy',
          value: function destroy () {
            this.stopLoad()
            if (this.timer) {
              clearInterval(this.timer)
              this.timer = null
            }
            _eventHandler2.default.prototype.destroy.call(this)
            this.state = State.STOPPED
          }
        }, {
          key: 'startLoad',
          value: function startLoad (startPosition) {
            if (this.levels) {
              var lastCurrentTime = this.lastCurrentTime
              var hls = this.hls
              this.stopLoad()
              if (!this.timer) {
                this.timer = setInterval(this.ontick, 100)
              }
              this.level = -1
              this.fragLoadError = 0
              if (!this.startFragRequested) {
              // determine load level
                var startLevel = hls.startLevel
                if (startLevel === -1) {
                // -1 : guess start Level by doing a bitrate test by loading first fragment of lowest quality level
                  startLevel = 0
                  this.bitrateTest = true
                }
                // set new level to playlist loader : this will trigger start level load
                // hls.nextLoadLevel remains until it is set to a new value or until a new frag is successfully loaded
                this.level = hls.nextLoadLevel = startLevel
                this.loadedmetadata = false
              }
              // if startPosition undefined but lastCurrentTime set, set startPosition to last currentTime
              if (lastCurrentTime > 0 && startPosition === -1) {
                _logger.logger.log('override startPosition with lastCurrentTime @' + lastCurrentTime.toFixed(3))
                startPosition = lastCurrentTime
              }
              this.state = State.IDLE
              this.nextLoadPosition = this.startPosition = this.lastCurrentTime = startPosition
              this.tick()
            } else {
              this.forceStartLoad = true
              this.state = State.STOPPED
            }
          }
        }, {
          key: 'stopLoad',
          value: function stopLoad () {
            var frag = this.fragCurrent
            if (frag) {
              if (frag.loader) {
                frag.loader.abort()
              }
              this.fragCurrent = null
            }
            this.fragPrevious = null
            if (this.demuxer) {
              this.demuxer.destroy()
              this.demuxer = null
            }
            this.state = State.STOPPED
            this.forceStartLoad = false
          }
        }, {
          key: 'tick',
          value: function tick () {
            this.ticks++
            if (this.ticks === 1) {
              this.doTick()
              if (this.ticks > 1) {
                setTimeout(this.tick, 1)
              }
              this.ticks = 0
            }
          }
        }, {
          key: 'doTick',
          value: function doTick () {
            switch (this.state) {
              case State.ERROR:
              // don't do anything in error state to avoid breaking further ...
                break
              case State.BUFFER_FLUSHING:
              // in buffer flushing state, reset fragLoadError counter
                this.fragLoadError = 0
                break
              case State.IDLE:
              // when this returns false there was an error and we shall return immediatly
              // from current tick
                if (!this._doTickIdle()) {
                  return
                }
                break
              case State.WAITING_LEVEL:
                var level = this.levels[this.level]
                // check if playlist is already loaded
                if (level && level.details) {
                  this.state = State.IDLE
                }
                break
              case State.FRAG_LOADING_WAITING_RETRY:
                var now = performance.now()
                var retryDate = this.retryDate
                // if current time is gt than retryDate, or if media seeking let's switch to IDLE state to retry loading
                if (!retryDate || now >= retryDate || this.media && this.media.seeking) {
                  _logger.logger.log('mediaController: retryDate reached, switch back to IDLE state')
                  this.state = State.IDLE
                }
                break
              case State.ERROR:
              case State.STOPPED:
              case State.FRAG_LOADING:
              case State.PARSING:
              case State.PARSED:
              case State.ENDED:
                break
              default:
                break
            }
            // check buffer
            this._checkBuffer()
            // check/update current fragment
            this._checkFragmentChanged()
          }

          // Ironically the "idle" state is the on we do the most logic in it seems ....
          // NOTE: Maybe we could rather schedule a check for buffer length after half of the currently
          //       played segment, or on pause/play/seek instead of naively checking every 100ms?

        }, {
          key: '_doTickIdle',
          value: function _doTickIdle () {
            var hls = this.hls
            var config = hls.config
            var media = this.media

            // if video not attached AND
            // start fragment already requested OR start frag prefetch disable
            // exit loop
            // => if start level loaded and media not attached but start frag prefetch is enabled and start frag not requested yet, we will not exit loop
            if (this.levelLastLoaded !== undefined && !media && (this.startFragRequested || !config.startFragPrefetch)) {
              return true
            }

            // if we have not yet loaded any fragment, start loading from start position
            var pos = void 0
            if (this.loadedmetadata) {
              pos = media.currentTime
            } else {
              pos = this.nextLoadPosition
            }
            // determine next load level
            var level = hls.nextLoadLevel
            var levelInfo = this.levels[level]
            var levelBitrate = levelInfo.bitrate
            var maxBufLen = void 0

            // compute max Buffer Length that we could get from this load level, based on level bitrate. don't buffer more than 60 MB and more than 30s
            if (levelBitrate) {
              maxBufLen = Math.max(8 * config.maxBufferSize / levelBitrate, config.maxBufferLength)
            } else {
              maxBufLen = config.maxBufferLength
            }
            maxBufLen = Math.min(maxBufLen, config.maxMaxBufferLength)

            // determine next candidate fragment to be loaded, based on current position and end of buffer position
            // ensure up to `config.maxMaxBufferLength` of buffer upfront

            var bufferInfo = _bufferHelper2.default.bufferInfo(this.mediaBuffer ? this.mediaBuffer : media, pos, config.maxBufferHole)
            var bufferLen = bufferInfo.len
            // Stay idle if we are still with buffer margins
            if (bufferLen >= maxBufLen) {
              return true
            }

            // if buffer length is less than maxBufLen try to load a new fragment ...
            _logger.logger.trace('buffer length of ' + bufferLen.toFixed(3) + ' is below max of ' + maxBufLen.toFixed(3) + '. checking for more payload ...')

            // set next load level : this will trigger a playlist load if needed
            this.level = hls.nextLoadLevel = level

            var levelDetails = levelInfo.details
            // if level info not retrieved yet, switch state and wait for level retrieval
            // if live playlist, ensure that new playlist has been refreshed to avoid loading/try to load
            // a useless and outdated fragment (that might even introduce load error if it is already out of the live playlist)
            if (typeof levelDetails === 'undefined' || levelDetails.live && this.levelLastLoaded !== level) {
              this.state = State.WAITING_LEVEL
              return true
            }

            // we just got done loading the final fragment, check if we need to finalize media stream
            var fragPrevious = this.fragPrevious
            if (!levelDetails.live && fragPrevious && fragPrevious.sn === levelDetails.endSN) {
            // fragPrevious is last fragment. retrieve level duration using last frag start offset + duration
            // real duration might be lower than initial duration if there are drifts between real frag duration and playlist signaling
              var duration = Math.min(media.duration, fragPrevious.start + fragPrevious.duration)
              // if everything (almost) til the end is buffered, let's signal eos
              // we don't compare exactly media.duration === bufferInfo.end as there could be some subtle media duration difference
              // using half frag duration should help cope with these cases.
              // also cope with almost zero last frag duration (max last frag duration with 200ms) refer to https://github.com/video-dev/hls.js/pull/657
              if (duration - Math.max(bufferInfo.end, fragPrevious.start) <= Math.max(0.2, fragPrevious.duration / 2)) {
              // Finalize the media stream
                var data = {}
                if (this.altAudio) {
                  data.type = 'video'
                }
                this.hls.trigger(_events2.default.BUFFER_EOS, data)
                this.state = State.ENDED
                return true
              }
            }

            // if we have the levelDetails for the selected variant, lets continue enrichen our stream (load keys/fragments or trigger EOS, etc..)
            return this._fetchPayloadOrEos(pos, bufferInfo, levelDetails)
          }
        }, {
          key: '_fetchPayloadOrEos',
          value: function _fetchPayloadOrEos (pos, bufferInfo, levelDetails) {
            var fragPrevious = this.fragPrevious
            var level = this.level
            var fragments = levelDetails.fragments
            var fragLen = fragments.length

            // empty playlist
            if (fragLen === 0) {
              return false
            }

            // find fragment index, contiguous with end of buffer position
            var start = fragments[0].start
            var end = fragments[fragLen - 1].start + fragments[fragLen - 1].duration
            var bufferEnd = bufferInfo.end
            var frag = void 0

            if (levelDetails.initSegment && !levelDetails.initSegment.data) {
              frag = levelDetails.initSegment
            } else {
            // in case of live playlist we need to ensure that requested position is not located before playlist start
              if (levelDetails.live) {
                var initialLiveManifestSize = this.config.initialLiveManifestSize
                if (fragLen < initialLiveManifestSize) {
                  _logger.logger.warn('Can not start playback of a level, reason: not enough fragments ' + fragLen + ' < ' + initialLiveManifestSize)
                  return false
                }

                frag = this._ensureFragmentAtLivePoint(levelDetails, bufferEnd, start, end, fragPrevious, fragments, fragLen)
                // if it explicitely returns null don't load any fragment and exit function now
                if (frag === null) {
                  return false
                }
              } else {
              // VoD playlist: if bufferEnd before start of playlist, load first fragment
                if (bufferEnd < start) {
                  frag = fragments[0]
                }
              }
            }
            if (!frag) {
              frag = this._findFragment(start, fragPrevious, fragLen, fragments, bufferEnd, end, levelDetails)
            }
            if (frag) {
              return this._loadFragmentOrKey(frag, level, levelDetails, pos, bufferEnd)
            }
            return true
          }
        }, {
          key: '_ensureFragmentAtLivePoint',
          value: function _ensureFragmentAtLivePoint (levelDetails, bufferEnd, start, end, fragPrevious, fragments, fragLen) {
            var config = this.hls.config
            var media = this.media

            var frag = void 0

            // check if requested position is within seekable boundaries :
            // logger.log(`start/pos/bufEnd/seeking:${start.toFixed(3)}/${pos.toFixed(3)}/${bufferEnd.toFixed(3)}/${this.media.seeking}`);
            var maxLatency = config.liveMaxLatencyDuration !== undefined ? config.liveMaxLatencyDuration : config.liveMaxLatencyDurationCount * levelDetails.targetduration

            if (bufferEnd < Math.max(start - config.maxFragLookUpTolerance, end - maxLatency)) {
              var liveSyncPosition = this.liveSyncPosition = this.computeLivePosition(start, levelDetails)
              _logger.logger.log('buffer end: ' + bufferEnd.toFixed(3) + ' is located too far from the end of live sliding playlist, reset currentTime to : ' + liveSyncPosition.toFixed(3))
              bufferEnd = liveSyncPosition
              if (media && media.readyState && media.duration > liveSyncPosition) {
                media.currentTime = liveSyncPosition
              }
            }

            // if end of buffer greater than live edge, don't load any fragment
            // this could happen if live playlist intermittently slides in the past.
            // level 1 loaded [182580161,182580167]
            // level 1 loaded [182580162,182580169]
            // Loading 182580168 of [182580162 ,182580169],level 1 ..
            // Loading 182580169 of [182580162 ,182580169],level 1 ..
            // level 1 loaded [182580162,182580168] <============= here we should have bufferEnd > end. in that case break to avoid reloading 182580168
            // level 1 loaded [182580164,182580171]
            //
            // don't return null in case media not loaded yet (readystate === 0)
            if (levelDetails.PTSKnown && bufferEnd > end && media && media.readyState) {
              return null
            }

            if (this.startFragRequested && !levelDetails.PTSKnown) {
            /* we are switching level on live playlist, but we don't have any PTS info for that quality level ...
           try to load frag matching with next SN.
           even if SN are not synchronized between playlists, loading this frag will help us
           compute playlist sliding and find the right one after in case it was not the right consecutive one */
              if (fragPrevious) {
                var targetSN = fragPrevious.sn + 1
                if (targetSN >= levelDetails.startSN && targetSN <= levelDetails.endSN) {
                  frag = fragments[targetSN - levelDetails.startSN]
                  _logger.logger.log('live playlist, switching playlist, load frag with next SN: ' + frag.sn)
                }
              }
              if (!frag) {
              /* we have no idea about which fragment should be loaded.
             so let's load mid fragment. it will help computing playlist sliding and find the right one
          */
                frag = fragments[Math.min(fragLen - 1, Math.round(fragLen / 2))]
                _logger.logger.log('live playlist, switching playlist, unknown, load middle frag : ' + frag.sn)
              }
            }
            return frag
          }
        }, {
          key: '_findFragment',
          value: function _findFragment (start, fragPrevious, fragLen, fragments, bufferEnd, end, levelDetails) {
            var config = this.hls.config
            var frag = void 0
            var foundFrag = void 0
            var maxFragLookUpTolerance = config.maxFragLookUpTolerance
            var fragNext = fragPrevious ? fragments[fragPrevious.sn - fragments[0].sn + 1] : undefined
            var fragmentWithinToleranceTest = function fragmentWithinToleranceTest (candidate) {
            // offset should be within fragment boundary - config.maxFragLookUpTolerance
            // this is to cope with situations like
            // bufferEnd = 9.991
            // frag[Ø] : [0,10]
            // frag[1] : [10,20]
            // bufferEnd is within frag[0] range ... although what we are expecting is to return frag[1] here
            //              frag start               frag start+duration
            //                  |-----------------------------|
            //              <--->                         <--->
            //  ...--------><-----------------------------><---------....
            // previous frag         matching fragment         next frag
            //  return -1             return 0                 return 1
            // logger.log(`level/sn/start/end/bufEnd:${level}/${candidate.sn}/${candidate.start}/${(candidate.start+candidate.duration)}/${bufferEnd}`);
            // Set the lookup tolerance to be small enough to detect the current segment - ensures we don't skip over very small segments
              var candidateLookupTolerance = Math.min(maxFragLookUpTolerance, candidate.duration)
              if (candidate.start + candidate.duration - candidateLookupTolerance <= bufferEnd) {
                return 1
              } // if maxFragLookUpTolerance will have negative value then don't return -1 for first element
              else if (candidate.start - candidateLookupTolerance > bufferEnd && candidate.start) {
                return -1
              }
              return 0
            }

            if (bufferEnd < end) {
              if (bufferEnd > end - maxFragLookUpTolerance) {
                maxFragLookUpTolerance = 0
              }
              // Prefer the next fragment if it's within tolerance
              if (fragNext && !fragmentWithinToleranceTest(fragNext)) {
                foundFrag = fragNext
              } else {
                foundFrag = _binarySearch2.default.search(fragments, fragmentWithinToleranceTest)
              }
            } else {
            // reach end of playlist
              foundFrag = fragments[fragLen - 1]
            }
            if (foundFrag) {
              frag = foundFrag
              var curSNIdx = frag.sn - levelDetails.startSN
              var sameLevel = fragPrevious && frag.level === fragPrevious.level
              var prevFrag = fragments[curSNIdx - 1]
              var nextFrag = fragments[curSNIdx + 1]
              // logger.log('find SN matching with pos:' +  bufferEnd + ':' + frag.sn);
              if (sameLevel && frag.sn === fragPrevious.sn) {
                if (frag.sn < levelDetails.endSN) {
                  var deltaPTS = fragPrevious.deltaPTS
                  // if there is a significant delta between audio and video, larger than max allowed hole,
                  // and if previous remuxed fragment did not start with a keyframe. (fragPrevious.dropped)
                  // let's try to load previous fragment again to get last keyframe
                  // then we will reload again current fragment (that way we should be able to fill the buffer hole ...)
                  if (deltaPTS && deltaPTS > config.maxBufferHole && fragPrevious.dropped && curSNIdx) {
                    frag = prevFrag
                    _logger.logger.warn('SN just loaded, with large PTS gap between audio and video, maybe frag is not starting with a keyframe ? load previous one to try to overcome this')
                    // decrement previous frag load counter to avoid frag loop loading error when next fragment will get reloaded
                    fragPrevious.loadCounter--
                  } else {
                    frag = nextFrag
                    _logger.logger.log('SN just loaded, load next one: ' + frag.sn)
                  }
                } else {
                  frag = null
                }
              } else if (frag.dropped && !sameLevel) {
              // Only backtrack a max of 1 consecutive fragment to prevent sliding back too far when little or no frags start with keyframes
                if (nextFrag && nextFrag.backtracked) {
                  _logger.logger.warn('Already backtracked from fragment ' + (curSNIdx + 1) + ', will not backtrack to fragment ' + curSNIdx + '. Loading fragment ' + (curSNIdx + 1))
                  frag = nextFrag
                } else {
                // If a fragment has dropped frames and it's in a different level/sequence, load the previous fragment to try and find the keyframe
                // Reset the dropped count now since it won't be reset until we parse the fragment again, which prevents infinite backtracking on the same segment
                  _logger.logger.warn('Loaded fragment with dropped frames, backtracking 1 segment to find a keyframe')
                  frag.dropped = 0
                  if (prevFrag) {
                    if (prevFrag.loadCounter) {
                      prevFrag.loadCounter--
                    }
                    frag = prevFrag
                  } else {
                    frag = null
                  }
                }
              }
            }
            return frag
          }
        }, {
          key: '_loadFragmentOrKey',
          value: function _loadFragmentOrKey (frag, level, levelDetails, pos, bufferEnd) {
            var hls = this.hls
            var config = hls.config

            // logger.log('loading frag ' + i +',pos/bufEnd:' + pos.toFixed(3) + '/' + bufferEnd.toFixed(3));
            if (frag.decryptdata && frag.decryptdata.uri != null && frag.decryptdata.key == null) {
              _logger.logger.log('Loading key for ' + frag.sn + ' of [' + levelDetails.startSN + ' ,' + levelDetails.endSN + '],level ' + level)
              this.state = State.KEY_LOADING
              hls.trigger(_events2.default.KEY_LOADING, { frag: frag })
            } else {
              _logger.logger.log('Loading ' + frag.sn + ' of [' + levelDetails.startSN + ' ,' + levelDetails.endSN + '],level ' + level + ', currentTime:' + pos.toFixed(3) + ',bufferEnd:' + bufferEnd.toFixed(3))
              // ensure that we are not reloading the same fragments in loop ...
              if (this.fragLoadIdx !== undefined) {
                this.fragLoadIdx++
              } else {
                this.fragLoadIdx = 0
              }
              if (frag.loadCounter) {
                frag.loadCounter++
                var maxThreshold = config.fragLoadingLoopThreshold
                // if this frag has already been loaded 3 times, and if it has been reloaded recently
                if (frag.loadCounter > maxThreshold && Math.abs(this.fragLoadIdx - frag.loadIdx) < maxThreshold) {
                  hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.FRAG_LOOP_LOADING_ERROR, fatal: false, frag: frag })
                  return false
                }
              } else {
                frag.loadCounter = 1
              }
              frag.loadIdx = this.fragLoadIdx
              this.fragCurrent = frag
              this.startFragRequested = true
              if (!isNaN(frag.sn)) {
                this.nextLoadPosition = frag.start + frag.duration
              }
              frag.autoLevel = hls.autoLevelEnabled
              frag.bitrateTest = this.bitrateTest
              hls.trigger(_events2.default.FRAG_LOADING, { frag: frag })
              // lazy demuxer init, as this could take some time ... do it during frag loading
              if (!this.demuxer) {
                this.demuxer = new _demuxer2.default(hls, 'main')
              }
              this.state = State.FRAG_LOADING
              return true
            }
          }
        }, {
          key: 'getBufferedFrag',
          value: function getBufferedFrag (position) {
            return _binarySearch2.default.search(this._bufferedFrags, function (frag) {
              if (position < frag.startPTS) {
                return -1
              } else if (position > frag.endPTS) {
                return 1
              }
              return 0
            })
          }
        }, {
          key: 'followingBufferedFrag',
          value: function followingBufferedFrag (frag) {
            if (frag) {
            // try to get range of next fragment (500ms after this range)
              return this.getBufferedFrag(frag.endPTS + 0.5)
            }
            return null
          }
        }, {
          key: '_checkFragmentChanged',
          value: function _checkFragmentChanged () {
            var fragPlayingCurrent
            var currentTime
            var video = this.media
            if (video && video.readyState && video.seeking === false) {
              currentTime = video.currentTime
              /* if video element is in seeked state, currentTime can only increase.
          (assuming that playback rate is positive ...)
          As sometimes currentTime jumps back to zero after a
          media decode error, check this, to avoid seeking back to
          wrong position after a media decode error
        */
              if (currentTime > video.playbackRate * this.lastCurrentTime) {
                this.lastCurrentTime = currentTime
              }
              if (_bufferHelper2.default.isBuffered(video, currentTime)) {
                fragPlayingCurrent = this.getBufferedFrag(currentTime)
              } else if (_bufferHelper2.default.isBuffered(video, currentTime + 0.1)) {
              /* ensure that FRAG_CHANGED event is triggered at startup,
            when first video frame is displayed and playback is paused.
            add a tolerance of 100ms, in case current position is not buffered,
            check if current pos+100ms is buffered and use that buffer range
            for FRAG_CHANGED event reporting */
                fragPlayingCurrent = this.getBufferedFrag(currentTime + 0.1)
              }
              if (fragPlayingCurrent) {
                var fragPlaying = fragPlayingCurrent
                if (fragPlaying !== this.fragPlaying) {
                  this.hls.trigger(_events2.default.FRAG_CHANGED, { frag: fragPlaying })
                  var fragPlayingLevel = fragPlaying.level
                  if (!this.fragPlaying || this.fragPlaying.level !== fragPlayingLevel) {
                    this.hls.trigger(_events2.default.LEVEL_SWITCHED, { level: fragPlayingLevel })
                  }
                  this.fragPlaying = fragPlaying
                }
              }
            }
          }

          /*
      on immediate level switch :
       - pause playback if playing
       - cancel any pending load request
       - and trigger a buffer flush
    */

        }, {
          key: 'immediateLevelSwitch',
          value: function immediateLevelSwitch () {
            _logger.logger.log('immediateLevelSwitch')
            if (!this.immediateSwitch) {
              this.immediateSwitch = true
              var media = this.media
              var previouslyPaused = void 0
              if (media) {
                previouslyPaused = media.paused
                media.pause()
              } else {
              // don't restart playback after instant level switch in case media not attached
                previouslyPaused = true
              }
              this.previouslyPaused = previouslyPaused
            }
            var fragCurrent = this.fragCurrent
            if (fragCurrent && fragCurrent.loader) {
              fragCurrent.loader.abort()
            }
            this.fragCurrent = null
            // increase fragment load Index to avoid frag loop loading error after buffer flush
            this.fragLoadIdx += 2 * this.config.fragLoadingLoopThreshold
            // flush everything
            this.flushMainBuffer(0, Number.POSITIVE_INFINITY)
          }

          /*
       on immediate level switch end, after new fragment has been buffered :
        - nudge video decoder by slightly adjusting video currentTime (if currentTime buffered)
        - resume the playback if needed
    */

        }, {
          key: 'immediateLevelSwitchEnd',
          value: function immediateLevelSwitchEnd () {
            var media = this.media
            if (media && media.buffered.length) {
              this.immediateSwitch = false
              if (_bufferHelper2.default.isBuffered(media, media.currentTime)) {
              // only nudge if currentTime is buffered
                media.currentTime -= 0.0001
              }
              if (!this.previouslyPaused) {
                media.play()
              }
            }
          }
        }, {
          key: 'nextLevelSwitch',
          value: function nextLevelSwitch () {
          /* try to switch ASAP without breaking video playback :
         in order to ensure smooth but quick level switching,
        we need to find the next flushable buffer range
        we should take into account new segment fetch time
      */
            var media = this.media
            // ensure that media is defined and that metadata are available (to retrieve currentTime)
            if (media && media.readyState) {
              var fetchdelay = void 0
              var fragPlayingCurrent = void 0
              var nextBufferedFrag = void 0
              // increase fragment load Index to avoid frag loop loading error after buffer flush
              this.fragLoadIdx += 2 * this.config.fragLoadingLoopThreshold
              fragPlayingCurrent = this.getBufferedFrag(media.currentTime)
              if (fragPlayingCurrent && fragPlayingCurrent.startPTS > 1) {
              // flush buffer preceding current fragment (flush until current fragment start offset)
              // minus 1s to avoid video freezing, that could happen if we flush keyframe of current video ...
                this.flushMainBuffer(0, fragPlayingCurrent.startPTS - 1)
              }
              if (!media.paused) {
              // add a safety delay of 1s
                var nextLevelId = this.hls.nextLoadLevel
                var nextLevel = this.levels[nextLevelId]
                var fragLastKbps = this.fragLastKbps
                if (fragLastKbps && this.fragCurrent) {
                  fetchdelay = this.fragCurrent.duration * nextLevel.bitrate / (1000 * fragLastKbps) + 1
                } else {
                  fetchdelay = 0
                }
              } else {
                fetchdelay = 0
              }
              // logger.log('fetchdelay:'+fetchdelay);
              // find buffer range that will be reached once new fragment will be fetched
              nextBufferedFrag = this.getBufferedFrag(media.currentTime + fetchdelay)
              if (nextBufferedFrag) {
              // we can flush buffer range following this one without stalling playback
                nextBufferedFrag = this.followingBufferedFrag(nextBufferedFrag)
                if (nextBufferedFrag) {
                // if we are here, we can also cancel any loading/demuxing in progress, as they are useless
                  var fragCurrent = this.fragCurrent
                  if (fragCurrent && fragCurrent.loader) {
                    fragCurrent.loader.abort()
                  }
                  this.fragCurrent = null
                  // flush position is the start position of this new buffer
                  this.flushMainBuffer(nextBufferedFrag.startPTS, Number.POSITIVE_INFINITY)
                }
              }
            }
          }
        }, {
          key: 'flushMainBuffer',
          value: function flushMainBuffer (startOffset, endOffset) {
            this.state = State.BUFFER_FLUSHING
            var flushScope = { startOffset: startOffset, endOffset: endOffset }
            // if alternate audio tracks are used, only flush video, otherwise flush everything
            if (this.altAudio) {
              flushScope.type = 'video'
            }
            this.hls.trigger(_events2.default.BUFFER_FLUSHING, flushScope)
          }
        }, {
          key: 'onMediaAttached',
          value: function onMediaAttached (data) {
            var media = this.media = this.mediaBuffer = data.media
            this.onvseeking = this.onMediaSeeking.bind(this)
            this.onvseeked = this.onMediaSeeked.bind(this)
            this.onvended = this.onMediaEnded.bind(this)
            media.addEventListener('seeking', this.onvseeking)
            media.addEventListener('seeked', this.onvseeked)
            media.addEventListener('ended', this.onvended)
            var config = this.config
            if (this.levels && config.autoStartLoad) {
              this.hls.startLoad(config.startPosition)
            }
          }
        }, {
          key: 'onMediaDetaching',
          value: function onMediaDetaching () {
            var media = this.media
            if (media && media.ended) {
              _logger.logger.log('MSE detaching and video ended, reset startPosition')
              this.startPosition = this.lastCurrentTime = 0
            }

            // reset fragment loading counter on MSE detaching to avoid reporting FRAG_LOOP_LOADING_ERROR after error recovery
            var levels = this.levels
            if (levels) {
            // reset fragment load counter
              levels.forEach(function (level) {
                if (level.details) {
                  level.details.fragments.forEach(function (fragment) {
                    fragment.loadCounter = undefined
                    fragment.backtracked = undefined
                  })
                }
              })
            }
            // remove video listeners
            if (media) {
              media.removeEventListener('seeking', this.onvseeking)
              media.removeEventListener('seeked', this.onvseeked)
              media.removeEventListener('ended', this.onvended)
              this.onvseeking = this.onvseeked = this.onvended = null
            }
            this.media = this.mediaBuffer = null
            this.loadedmetadata = false
            this.stopLoad()
          }
        }, {
          key: 'onMediaSeeking',
          value: function onMediaSeeking () {
            var media = this.media
            var currentTime = media ? media.currentTime : undefined
            var config = this.config
            _logger.logger.log('media seeking to ' + currentTime.toFixed(3))
            if (this.state === State.FRAG_LOADING) {
              var mediaBuffer = this.mediaBuffer ? this.mediaBuffer : media
              var bufferInfo = _bufferHelper2.default.bufferInfo(mediaBuffer, currentTime, this.config.maxBufferHole)
              var fragCurrent = this.fragCurrent
              // check if we are seeking to a unbuffered area AND if frag loading is in progress
              if (bufferInfo.len === 0 && fragCurrent) {
                var tolerance = config.maxFragLookUpTolerance
                var fragStartOffset = fragCurrent.start - tolerance
                var fragEndOffset = fragCurrent.start + fragCurrent.duration + tolerance
                // check if we seek position will be out of currently loaded frag range : if out cancel frag load, if in, don't do anything
                if (currentTime < fragStartOffset || currentTime > fragEndOffset) {
                  if (fragCurrent.loader) {
                    _logger.logger.log('seeking outside of buffer while fragment load in progress, cancel fragment load')
                    fragCurrent.loader.abort()
                  }
                  this.fragCurrent = null
                  this.fragPrevious = null
                  // switch to IDLE state to load new fragment
                  this.state = State.IDLE
                } else {
                  _logger.logger.log('seeking outside of buffer but within currently loaded fragment range')
                }
              }
            } else if (this.state === State.ENDED) {
            // switch to IDLE state to check for potential new fragment
              this.state = State.IDLE
            }
            if (media) {
              this.lastCurrentTime = currentTime
            }
            // avoid reporting fragment loop loading error in case user is seeking several times on same position
            if (this.state !== State.FRAG_LOADING && this.fragLoadIdx !== undefined) {
              this.fragLoadIdx += 2 * config.fragLoadingLoopThreshold
            }
            // in case seeking occurs although no media buffered, adjust startPosition and nextLoadPosition to seek target
            if (!this.loadedmetadata) {
              this.nextLoadPosition = this.startPosition = currentTime
            }
            // tick to speed up processing
            this.tick()
          }
        }, {
          key: 'onMediaSeeked',
          value: function onMediaSeeked () {
            _logger.logger.log('media seeked to ' + this.media.currentTime.toFixed(3))
            // tick to speed up FRAGMENT_PLAYING triggering
            this.tick()
          }
        }, {
          key: 'onMediaEnded',
          value: function onMediaEnded () {
            _logger.logger.log('media ended')
            // reset startPosition and lastCurrentTime to restart playback @ stream beginning
            this.startPosition = this.lastCurrentTime = 0
          }
        }, {
          key: 'onManifestLoading',
          value: function onManifestLoading () {
          // reset buffer on manifest loading
            _logger.logger.log('trigger BUFFER_RESET')
            this.hls.trigger(_events2.default.BUFFER_RESET)
            this._bufferedFrags = []
            this.stalled = false
            this.startPosition = this.lastCurrentTime = 0
          }
        }, {
          key: 'onManifestParsed',
          value: function onManifestParsed (data) {
            var aac = false
            var heaac = false
            var codec
            data.levels.forEach(function (level) {
            // detect if we have different kind of audio codecs used amongst playlists
              codec = level.audioCodec
              if (codec) {
                if (codec.indexOf('mp4a.40.2') !== -1) {
                  aac = true
                }
                if (codec.indexOf('mp4a.40.5') !== -1) {
                  heaac = true
                }
              }
            })
            this.audioCodecSwitch = aac && heaac
            if (this.audioCodecSwitch) {
              _logger.logger.log('both AAC/HE-AAC audio found in levels; declaring level codec as HE-AAC')
            }
            this.levels = data.levels
            this.startLevelLoaded = false
            this.startFragRequested = false
            var config = this.config
            if (config.autoStartLoad || this.forceStartLoad) {
              this.hls.startLoad(config.startPosition)
            }
          }
        }, {
          key: 'onLevelLoaded',
          value: function onLevelLoaded (data) {
            var newDetails = data.details
            var newLevelId = data.level
            var curLevel = this.levels[newLevelId]
            var duration = newDetails.totalduration
            var sliding = 0

            _logger.logger.log('level ' + newLevelId + ' loaded [' + newDetails.startSN + ',' + newDetails.endSN + '],duration:' + duration)
            this.levelLastLoaded = newLevelId

            if (newDetails.live) {
              var curDetails = curLevel.details
              if (curDetails && newDetails.fragments.length > 0) {
              // we already have details for that level, merge them
                _levelHelper2.default.mergeDetails(curDetails, newDetails)
                sliding = newDetails.fragments[0].start
                this.liveSyncPosition = this.computeLivePosition(sliding, curDetails)
                if (newDetails.PTSKnown) {
                  _logger.logger.log('live playlist sliding:' + sliding.toFixed(3))
                } else {
                  _logger.logger.log('live playlist - outdated PTS, unknown sliding')
                }
              } else {
                newDetails.PTSKnown = false
                _logger.logger.log('live playlist - first load, unknown sliding')
              }
            } else {
              newDetails.PTSKnown = false
            }
            // override level info
            curLevel.details = newDetails
            this.hls.trigger(_events2.default.LEVEL_UPDATED, { details: newDetails, level: newLevelId })

            if (this.startFragRequested === false) {
            // compute start position if set to -1. use it straight away if value is defined
              if (this.startPosition === -1 || this.lastCurrentTime === -1) {
              // first, check if start time offset has been set in playlist, if yes, use this value
                var startTimeOffset = newDetails.startTimeOffset
                if (!isNaN(startTimeOffset)) {
                  if (startTimeOffset < 0) {
                    _logger.logger.log('negative start time offset ' + startTimeOffset + ', count from end of last fragment')
                    startTimeOffset = sliding + duration + startTimeOffset
                  }
                  _logger.logger.log('start time offset found in playlist, adjust startPosition to ' + startTimeOffset)
                  this.startPosition = startTimeOffset
                } else {
                // if live playlist, set start position to be fragment N-this.config.liveSyncDurationCount (usually 3)
                  if (newDetails.live) {
                    this.startPosition = this.computeLivePosition(sliding, newDetails)
                    _logger.logger.log('configure startPosition to ' + this.startPosition)
                  } else {
                    this.startPosition = 0
                  }
                }
                this.lastCurrentTime = this.startPosition
              }
              this.nextLoadPosition = this.startPosition
            }
            // only switch batck to IDLE state if we were waiting for level to start downloading a new fragment
            if (this.state === State.WAITING_LEVEL) {
              this.state = State.IDLE
            }
            // trigger handler right now
            this.tick()
          }
        }, {
          key: 'onKeyLoaded',
          value: function onKeyLoaded () {
            if (this.state === State.KEY_LOADING) {
              this.state = State.IDLE
              this.tick()
            }
          }
        }, {
          key: 'onFragLoaded',
          value: function onFragLoaded (data) {
            var fragCurrent = this.fragCurrent
            var fragLoaded = data.frag
            if (this.state === State.FRAG_LOADING && fragCurrent && fragLoaded.type === 'main' && fragLoaded.level === fragCurrent.level && fragLoaded.sn === fragCurrent.sn) {
              var stats = data.stats
              var currentLevel = this.levels[fragCurrent.level]
              var details = currentLevel.details
              _logger.logger.log('Loaded  ' + fragCurrent.sn + ' of [' + details.startSN + ' ,' + details.endSN + '],level ' + fragCurrent.level)
              // reset frag bitrate test in any case after frag loaded event
              this.bitrateTest = false
              this.stats = stats
              // if this frag was loaded to perform a bitrate test AND if hls.nextLoadLevel is greater than 0
              // then this means that we should be able to load a fragment at a higher quality level
              if (fragLoaded.bitrateTest === true && this.hls.nextLoadLevel) {
              // switch back to IDLE state ... we just loaded a fragment to determine adequate start bitrate and initialize autoswitch algo
                this.state = State.IDLE
                this.startFragRequested = false
                stats.tparsed = stats.tbuffered = performance.now()
                this.hls.trigger(_events2.default.FRAG_BUFFERED, { stats: stats, frag: fragCurrent, id: 'main' })
                this.tick()
              } else if (fragLoaded.sn === 'initSegment') {
                this.state = State.IDLE
                stats.tparsed = stats.tbuffered = performance.now()
                details.initSegment.data = data.payload
                this.hls.trigger(_events2.default.FRAG_BUFFERED, { stats: stats, frag: fragCurrent, id: 'main' })
                this.tick()
              } else {
                this.state = State.PARSING
                // transmux the MPEG-TS data to ISO-BMFF segments
                var duration = details.totalduration
                var level = fragCurrent.level
                var sn = fragCurrent.sn
                var audioCodec = this.config.defaultAudioCodec || currentLevel.audioCodec
                if (this.audioCodecSwap) {
                  _logger.logger.log('swapping playlist audio codec')
                  if (audioCodec === undefined) {
                    audioCodec = this.lastAudioCodec
                  }
                  if (audioCodec) {
                    if (audioCodec.indexOf('mp4a.40.5') !== -1) {
                      audioCodec = 'mp4a.40.2'
                    } else {
                      audioCodec = 'mp4a.40.5'
                    }
                  }
                }
                this.pendingBuffering = true
                this.appended = false
                _logger.logger.log('Parsing ' + sn + ' of [' + details.startSN + ' ,' + details.endSN + '],level ' + level + ', cc ' + fragCurrent.cc)
                var demuxer = this.demuxer
                if (!demuxer) {
                  demuxer = this.demuxer = new _demuxer2.default(this.hls, 'main')
                }
                // time Offset is accurate if level PTS is known, or if playlist is not sliding (not live) and if media is not seeking (this is to overcome potential timestamp drifts between playlists and fragments)
                var media = this.media
                var mediaSeeking = media && media.seeking
                var accurateTimeOffset = !mediaSeeking && (details.PTSKnown || !details.live)
                var initSegmentData = details.initSegment ? details.initSegment.data : []
                demuxer.push(data.payload, initSegmentData, audioCodec, currentLevel.videoCodec, fragCurrent, duration, accurateTimeOffset, undefined)
              }
            }
            this.fragLoadError = 0
          }
        }, {
          key: 'onFragParsingInitSegment',
          value: function onFragParsingInitSegment (data) {
            var fragCurrent = this.fragCurrent
            var fragNew = data.frag
            if (fragCurrent && data.id === 'main' && fragNew.sn === fragCurrent.sn && fragNew.level === fragCurrent.level && this.state === State.PARSING) {
              var tracks = data.tracks
              var trackName
              var track

              // if audio track is expected to come from audio stream controller, discard any coming from main
              if (tracks.audio && this.altAudio) {
                delete tracks.audio
              }
              // include levelCodec in audio and video tracks
              track = tracks.audio
              if (track) {
                var audioCodec = this.levels[this.level].audioCodec
                var ua = navigator.userAgent.toLowerCase()
                if (audioCodec && this.audioCodecSwap) {
                  _logger.logger.log('swapping playlist audio codec')
                  if (audioCodec.indexOf('mp4a.40.5') !== -1) {
                    audioCodec = 'mp4a.40.2'
                  } else {
                    audioCodec = 'mp4a.40.5'
                  }
                }
                // in case AAC and HE-AAC audio codecs are signalled in manifest
                // force HE-AAC , as it seems that most browsers prefers that way,
                // except for mono streams OR on FF
                // these conditions might need to be reviewed ...
                if (this.audioCodecSwitch) {
                // don't force HE-AAC if mono stream
                  if (track.metadata.channelCount !== 1 &&
            // don't force HE-AAC if firefox
            ua.indexOf('firefox') === -1) {
                    audioCodec = 'mp4a.40.5'
                  }
                }
                // HE-AAC is broken on Android, always signal audio codec as AAC even if variant manifest states otherwise
                if (ua.indexOf('android') !== -1 && track.container !== 'audio/mpeg') {
                // Exclude mpeg audio
                  audioCodec = 'mp4a.40.2'
                  _logger.logger.log('Android: force audio codec to ' + audioCodec)
                }
                track.levelCodec = audioCodec
                track.id = data.id
              }
              track = tracks.video
              if (track) {
                track.levelCodec = this.levels[this.level].videoCodec
                track.id = data.id
              }
              this.hls.trigger(_events2.default.BUFFER_CODECS, tracks)
              // loop through tracks that are going to be provided to bufferController
              for (trackName in tracks) {
                track = tracks[trackName]
                _logger.logger.log('main track:' + trackName + ',container:' + track.container + ',codecs[level/parsed]=[' + track.levelCodec + '/' + track.codec + ']')
                var initSegment = track.initSegment
                if (initSegment) {
                  this.appended = true
                  // arm pending Buffering flag before appending a segment
                  this.pendingBuffering = true
                  this.hls.trigger(_events2.default.BUFFER_APPENDING, { type: trackName, data: initSegment, parent: 'main', content: 'initSegment' })
                }
              }
              // trigger handler right now
              this.tick()
            }
          }
        }, {
          key: 'onFragParsingData',
          value: function onFragParsingData (data) {
            var _this2 = this

            var fragCurrent = this.fragCurrent
            var fragNew = data.frag
            if (fragCurrent && data.id === 'main' && fragNew.sn === fragCurrent.sn && fragNew.level === fragCurrent.level && !(data.type === 'audio' && this.altAudio) && // filter out main audio if audio track is loaded through audio stream controller
      this.state === State.PARSING) {
              var level = this.levels[this.level]
              var frag = fragCurrent
              if (isNaN(data.endPTS)) {
                data.endPTS = data.startPTS + fragCurrent.duration
                data.endDTS = data.startDTS + fragCurrent.duration
              }

              _logger.logger.log('Parsed ' + data.type + ',PTS:[' + data.startPTS.toFixed(3) + ',' + data.endPTS.toFixed(3) + '],DTS:[' + data.startDTS.toFixed(3) + '/' + data.endDTS.toFixed(3) + '],nb:' + data.nb + ',dropped:' + (data.dropped || 0))

              // Detect gaps in a fragment  and try to fix it by finding a keyframe in the previous fragment (see _findFragments)
              if (data.type === 'video') {
                frag.dropped = data.dropped
                if (frag.dropped) {
                  if (!frag.backtracked) {
                  // Return back to the IDLE state without appending to buffer
                  // Causes findFragments to backtrack a segment and find the keyframe
                  // Audio fragments arriving before video sets the nextLoadPosition, causing _findFragments to skip the backtracked fragment
                    frag.backtracked = true
                    this.nextLoadPosition = data.startPTS
                    this.state = State.IDLE
                    this.tick()
                    return
                  } else {
                    _logger.logger.warn('Already backtracked on this fragment, appending with the gap')
                  }
                } else {
                // Only reset the backtracked flag if we've loaded the frag without any dropped frames
                  frag.backtracked = false
                }
              }

              var drift = _levelHelper2.default.updateFragPTSDTS(level.details, frag.sn, data.startPTS, data.endPTS, data.startDTS, data.endDTS)
              var hls = this.hls
              hls.trigger(_events2.default.LEVEL_PTS_UPDATED, { details: level.details, level: this.level, drift: drift, type: data.type, start: data.startPTS, end: data.endPTS });

              // has remuxer dropped video frames located before first keyframe ?
              [data.data1, data.data2].forEach(function (buffer) {
              // only append in PARSING state (rationale is that an appending error could happen synchronously on first segment appending)
              // in that case it is useless to append following segments
                if (buffer && buffer.length && _this2.state === State.PARSING) {
                  _this2.appended = true
                  // arm pending Buffering flag before appending a segment
                  _this2.pendingBuffering = true
                  hls.trigger(_events2.default.BUFFER_APPENDING, { type: data.type, data: buffer, parent: 'main', content: 'data' })
                }
              })
              // trigger handler right now
              this.tick()
            }
          }
        }, {
          key: 'onFragParsed',
          value: function onFragParsed (data) {
            var fragCurrent = this.fragCurrent
            var fragNew = data.frag
            if (fragCurrent && data.id === 'main' && fragNew.sn === fragCurrent.sn && fragNew.level === fragCurrent.level && this.state === State.PARSING) {
              this.stats.tparsed = performance.now()
              this.state = State.PARSED
              this._checkAppendedParsed()
            }
          }
        }, {
          key: 'onAudioTrackSwitching',
          value: function onAudioTrackSwitching (data) {
          // if any URL found on new audio track, it is an alternate audio track
            var altAudio = !!data.url
            var trackId = data.id
            // if we switch on main audio, ensure that main fragment scheduling is synced with media.buffered
            // don't do anything if we switch to alt audio: audio stream controller is handling it.
            // we will just have to change buffer scheduling on audioTrackSwitched
            if (!altAudio) {
              if (this.mediaBuffer !== this.media) {
                _logger.logger.log('switching on main audio, use media.buffered to schedule main fragment loading')
                this.mediaBuffer = this.media
                var fragCurrent = this.fragCurrent
                // we need to refill audio buffer from main: cancel any frag loading to speed up audio switch
                if (fragCurrent.loader) {
                  _logger.logger.log('switching to main audio track, cancel main fragment load')
                  fragCurrent.loader.abort()
                }
                this.fragCurrent = null
                this.fragPrevious = null
                // destroy demuxer to force init segment generation (following audio switch)
                if (this.demuxer) {
                  this.demuxer.destroy()
                  this.demuxer = null
                }
                // switch to IDLE state to load new fragment
                this.state = State.IDLE
              }
              var hls = this.hls
              // switching to main audio, flush all audio and trigger track switched
              hls.trigger(_events2.default.BUFFER_FLUSHING, { startOffset: 0, endOffset: Number.POSITIVE_INFINITY, type: 'audio' })
              hls.trigger(_events2.default.AUDIO_TRACK_SWITCHED, { id: trackId })
              this.altAudio = false
            }
          }
        }, {
          key: 'onAudioTrackSwitched',
          value: function onAudioTrackSwitched (data) {
            var trackId = data.id
            var altAudio = !!this.hls.audioTracks[trackId].url
            if (altAudio) {
              var videoBuffer = this.videoBuffer
              // if we switched on alternate audio, ensure that main fragment scheduling is synced with video sourcebuffer buffered
              if (videoBuffer && this.mediaBuffer !== videoBuffer) {
                _logger.logger.log('switching on alternate audio, use video.buffered to schedule main fragment loading')
                this.mediaBuffer = videoBuffer
              }
            }
            this.altAudio = altAudio
            this.tick()
          }
        }, {
          key: 'onBufferCreated',
          value: function onBufferCreated (data) {
            var tracks = data.tracks
            var mediaTrack = void 0
            var name = void 0
            var alternate = false
            for (var type in tracks) {
              var track = tracks[type]
              if (track.id === 'main') {
                name = type
                mediaTrack = track
                // keep video source buffer reference
                if (type === 'video') {
                  this.videoBuffer = tracks[type].buffer
                }
              } else {
                alternate = true
              }
            }
            if (alternate && mediaTrack) {
              _logger.logger.log('alternate track found, use ' + name + '.buffered to schedule main fragment loading')
              this.mediaBuffer = mediaTrack.buffer
            } else {
              this.mediaBuffer = this.media
            }
          }
        }, {
          key: 'onBufferAppended',
          value: function onBufferAppended (data) {
            if (data.parent === 'main') {
              var state = this.state
              if (state === State.PARSING || state === State.PARSED) {
              // check if all buffers have been appended
                this.pendingBuffering = data.pending > 0
                this._checkAppendedParsed()
              }
            }
          }
        }, {
          key: '_checkAppendedParsed',
          value: function _checkAppendedParsed () {
          // trigger handler right now
            if (this.state === State.PARSED && (!this.appended || !this.pendingBuffering)) {
              var frag = this.fragCurrent
              if (frag) {
                var media = this.mediaBuffer ? this.mediaBuffer : this.media
                _logger.logger.log('main buffered : ' + _timeRanges2.default.toString(media.buffered))
                // filter fragments potentially evicted from buffer. this is to avoid memleak on live streams
                var bufferedFrags = this._bufferedFrags.filter(function (frag) {
                  return _bufferHelper2.default.isBuffered(media, (frag.startPTS + frag.endPTS) / 2)
                })
                // push new range
                bufferedFrags.push(frag)
                // sort frags, as we use BinarySearch for lookup in getBufferedFrag ...
                this._bufferedFrags = bufferedFrags.sort(function (a, b) {
                  return a.startPTS - b.startPTS
                })
                this.fragPrevious = frag
                var stats = this.stats
                stats.tbuffered = performance.now()
                // we should get rid of this.fragLastKbps
                this.fragLastKbps = Math.round(8 * stats.total / (stats.tbuffered - stats.tfirst))
                this.hls.trigger(_events2.default.FRAG_BUFFERED, { stats: stats, frag: frag, id: 'main' })
                this.state = State.IDLE
              }
              this.tick()
            }
          }
        }, {
          key: 'onError',
          value: function onError (data) {
            var frag = data.frag || this.fragCurrent
            // don't handle frag error not related to main fragment
            if (frag && frag.type !== 'main') {
              return
            }
            var media = this.media

            // 0.5 : tolerance needed as some browsers stalls playback before reaching buffered end
            var mediaBuffered = media && _bufferHelper2.default.isBuffered(media, media.currentTime) && _bufferHelper2.default.isBuffered(media, media.currentTime + 0.5)
            switch (data.details) {
              case _errors.ErrorDetails.FRAG_LOAD_ERROR:
              case _errors.ErrorDetails.FRAG_LOAD_TIMEOUT:
              case _errors.ErrorDetails.KEY_LOAD_ERROR:
              case _errors.ErrorDetails.KEY_LOAD_TIMEOUT:
                if (!data.fatal) {
                  var loadError = this.fragLoadError
                  if (loadError) {
                    loadError++
                  } else {
                    loadError = 1
                  }
                  var config = this.config
                  // keep retrying / don't raise fatal network error if current position is buffered or if in automode with current level not 0
                  if (loadError <= config.fragLoadingMaxRetry || mediaBuffered || frag.autoLevel && frag.level) {
                    this.fragLoadError = loadError
                    // reset load counter to avoid frag loop loading error
                    frag.loadCounter = 0
                    // exponential backoff capped to config.fragLoadingMaxRetryTimeout
                    var delay = Math.min(Math.pow(2, loadError - 1) * config.fragLoadingRetryDelay, config.fragLoadingMaxRetryTimeout)
                    _logger.logger.warn('mediaController: frag loading failed, retry in ' + delay + ' ms')
                    this.retryDate = performance.now() + delay
                    // retry loading state
                    // if loadedmetadata is not set, it means that we are emergency switch down on first frag
                    // in that case, reset startFragRequested flag
                    if (!this.loadedmetadata) {
                      this.startFragRequested = false
                      this.nextLoadPosition = this.startPosition
                    }
                    this.state = State.FRAG_LOADING_WAITING_RETRY
                  } else {
                    _logger.logger.error('mediaController: ' + data.details + ' reaches max retry, redispatch as fatal ...')
                    // switch error to fatal
                    data.fatal = true
                    this.state = State.ERROR
                  }
                }
                break
              case _errors.ErrorDetails.FRAG_LOOP_LOADING_ERROR:
                if (!data.fatal) {
                // if buffer is not empty
                  if (mediaBuffered) {
                  // try to reduce max buffer length : rationale is that we could get
                  // frag loop loading error because of buffer eviction
                    this._reduceMaxBufferLength(frag.duration)
                    this.state = State.IDLE
                  } else {
                  // buffer empty. report as fatal if in manual mode or if lowest level.
                  // level controller takes care of emergency switch down logic
                    if (!frag.autoLevel || frag.level === 0) {
                    // switch error to fatal
                      data.fatal = true
                      this.state = State.ERROR
                    }
                  }
                }
                break
              case _errors.ErrorDetails.LEVEL_LOAD_ERROR:
              case _errors.ErrorDetails.LEVEL_LOAD_TIMEOUT:
                if (this.state !== State.ERROR) {
                  if (data.fatal) {
                  // if fatal error, stop processing
                    this.state = State.ERROR
                    _logger.logger.warn('streamController: ' + data.details + ',switch to ' + this.state + ' state ...')
                  } else {
                  // in cas of non fatal error while waiting level load to be completed, switch back to IDLE
                    if (this.state === State.WAITING_LEVEL) {
                      this.state = State.IDLE
                    }
                  }
                }
                break
              case _errors.ErrorDetails.BUFFER_FULL_ERROR:
              // if in appending state
                if (data.parent === 'main' && (this.state === State.PARSING || this.state === State.PARSED)) {
                // reduce max buf len if current position is buffered
                  if (mediaBuffered) {
                    this._reduceMaxBufferLength(this.config.maxBufferLength)
                    this.state = State.IDLE
                  } else {
                  // current position is not buffered, but browser is still complaining about buffer full error
                  // this happens on IE/Edge, refer to https://github.com/video-dev/hls.js/pull/708
                  // in that case flush the whole buffer to recover
                    _logger.logger.warn('buffer full error also media.currentTime is not buffered, flush everything')
                    this.fragCurrent = null
                    // flush everything
                    this.flushMainBuffer(0, Number.POSITIVE_INFINITY)
                  }
                }
                break
              default:
                break
            }
          }
        }, {
          key: '_reduceMaxBufferLength',
          value: function _reduceMaxBufferLength (minLength) {
            var config = this.config
            if (config.maxMaxBufferLength >= minLength) {
            // reduce max buffer length as it might be too high. we do this to avoid loop flushing ...
              config.maxMaxBufferLength /= 2
              _logger.logger.warn('main:reduce max buffer length to ' + config.maxMaxBufferLength + 's')
              // increase fragment load Index to avoid frag loop loading error after buffer flush
              this.fragLoadIdx += 2 * config.fragLoadingLoopThreshold
            }
          }
        }, {
          key: '_checkBuffer',
          value: function _checkBuffer () {
            var media = this.media
            // if ready state different from HAVE_NOTHING (numeric value 0), we are allowed to seek
            if (media && media.readyState) {
              var currentTime = media.currentTime
              var mediaBuffer = this.mediaBuffer ? this.mediaBuffer : media
              var buffered = mediaBuffer.buffered
              // adjust currentTime to start position on loaded metadata
              if (!this.loadedmetadata && buffered.length) {
                this.loadedmetadata = true
                // only adjust currentTime if different from startPosition or if startPosition not buffered
                // at that stage, there should be only one buffered range, as we reach that code after first fragment has been buffered
                var startPosition = media.seeking ? currentTime : this.startPosition
                var startPositionBuffered = _bufferHelper2.default.isBuffered(mediaBuffer, startPosition)
                // if currentTime not matching with expected startPosition or startPosition not buffered
                if (currentTime !== startPosition || !startPositionBuffered) {
                  _logger.logger.log('target start position:' + startPosition)
                  // if startPosition not buffered, let's seek to buffered.start(0)
                  if (!startPositionBuffered) {
                    startPosition = buffered.start(0)
                    _logger.logger.log('target start position not buffered, seek to buffered.start(0) ' + startPosition)
                  }
                  _logger.logger.log('adjust currentTime from ' + currentTime + ' to ' + startPosition)
                  media.currentTime = startPosition
                }
              } else if (this.immediateSwitch) {
                this.immediateLevelSwitchEnd()
              } else {
                var bufferInfo = _bufferHelper2.default.bufferInfo(media, currentTime, 0)
                var expectedPlaying = !(media.paused || // not playing when media is paused
          media.ended || // not playing when media is ended
          media.buffered.length === 0)
                // not playing if nothing buffered
                var jumpThreshold = 0.5
                // tolerance needed as some browsers stalls playback before reaching buffered range end
                var playheadMoving = currentTime !== this.lastCurrentTime
                var config = this.config

                if (playheadMoving) {
                // played moving, but was previously stalled => now not stuck anymore
                  if (this.stallReported) {
                    _logger.logger.warn('playback not stuck anymore @' + currentTime + ', after ' + Math.round(performance.now() - this.stalled) + 'ms')
                    this.stallReported = false
                  }
                  this.stalled = undefined
                  this.nudgeRetry = 0
                } else {
                // playhead not moving
                  if (expectedPlaying) {
                  // playhead not moving BUT media expected to play
                    var tnow = performance.now()
                    var hls = this.hls
                    if (!this.stalled) {
                    // stall just detected, store current time
                      this.stalled = tnow
                      this.stallReported = false
                    } else {
                    // playback already stalled, check stalling duration
                    // if stalling for more than a given threshold, let's try to recover
                      var stalledDuration = tnow - this.stalled
                      var bufferLen = bufferInfo.len
                      var nudgeRetry = this.nudgeRetry || 0
                      // have we reached stall deadline ?
                      if (bufferLen <= jumpThreshold && stalledDuration > config.lowBufferWatchdogPeriod * 1000) {
                      // report stalled error once
                        if (!this.stallReported) {
                          this.stallReported = true
                          _logger.logger.warn('playback stalling in low buffer @' + currentTime)
                          hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.BUFFER_STALLED_ERROR, fatal: false, buffer: bufferLen })
                        }
                        // if buffer len is below threshold, try to jump to start of next buffer range if close
                        // no buffer available @ currentTime, check if next buffer is close (within a config.maxSeekHole second range)
                        var nextBufferStart = bufferInfo.nextStart
                        var delta = nextBufferStart - currentTime
                        if (nextBufferStart && delta < config.maxSeekHole && delta > 0) {
                          this.nudgeRetry = ++nudgeRetry
                          var nudgeOffset = nudgeRetry * config.nudgeOffset
                          // next buffer is close ! adjust currentTime to nextBufferStart
                          // this will ensure effective video decoding
                          _logger.logger.log('adjust currentTime from ' + media.currentTime + ' to next buffered @ ' + nextBufferStart + ' + nudge ' + nudgeOffset)
                          media.currentTime = nextBufferStart + nudgeOffset
                          // reset stalled so to rearm watchdog timer
                          this.stalled = undefined
                          hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.BUFFER_SEEK_OVER_HOLE, fatal: false, hole: nextBufferStart + nudgeOffset - currentTime })
                        }
                      } else if (bufferLen > jumpThreshold && stalledDuration > config.highBufferWatchdogPeriod * 1000) {
                      // report stalled error once
                        if (!this.stallReported) {
                          this.stallReported = true
                          _logger.logger.warn('playback stalling in high buffer @' + currentTime)
                          hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.BUFFER_STALLED_ERROR, fatal: false, buffer: bufferLen })
                        }
                        // reset stalled so to rearm watchdog timer
                        this.stalled = undefined
                        this.nudgeRetry = ++nudgeRetry
                        if (nudgeRetry < config.nudgeMaxRetry) {
                          var _currentTime = media.currentTime
                          var targetTime = _currentTime + nudgeRetry * config.nudgeOffset
                          _logger.logger.log('adjust currentTime from ' + _currentTime + ' to ' + targetTime)
                          // playback stalled in buffered area ... let's nudge currentTime to try to overcome this
                          media.currentTime = targetTime
                          hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.BUFFER_NUDGE_ON_STALL, fatal: false })
                        } else {
                          _logger.logger.error('still stuck in high buffer @' + currentTime + ' after ' + config.nudgeMaxRetry + ', raise fatal error')
                          hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.BUFFER_STALLED_ERROR, fatal: true })
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }, {
          key: 'onFragLoadEmergencyAborted',
          value: function onFragLoadEmergencyAborted () {
            this.state = State.IDLE
            // if loadedmetadata is not set, it means that we are emergency switch down on first frag
            // in that case, reset startFragRequested flag
            if (!this.loadedmetadata) {
              this.startFragRequested = false
              this.nextLoadPosition = this.startPosition
            }
            this.tick()
          }
        }, {
          key: 'onBufferFlushed',
          value: function onBufferFlushed () {
          /* after successful buffer flushing, filter flushed fragments from bufferedFrags
        use mediaBuffered instead of media (so that we will check against video.buffered ranges in case of alt audio track)
      */
            var media = this.mediaBuffer ? this.mediaBuffer : this.media
            this._bufferedFrags = this._bufferedFrags.filter(function (frag) {
              return _bufferHelper2.default.isBuffered(media, (frag.startPTS + frag.endPTS) / 2)
            })

            // increase fragment load Index to avoid frag loop loading error after buffer flush
            this.fragLoadIdx += 2 * this.config.fragLoadingLoopThreshold
            // move to IDLE once flush complete. this should trigger new fragment loading
            this.state = State.IDLE
            // reset reference to frag
            this.fragPrevious = null
          }
        }, {
          key: 'swapAudioCodec',
          value: function swapAudioCodec () {
            this.audioCodecSwap = !this.audioCodecSwap
          }
        }, {
          key: 'computeLivePosition',
          value: function computeLivePosition (sliding, levelDetails) {
            var targetLatency = this.config.liveSyncDuration !== undefined ? this.config.liveSyncDuration : this.config.liveSyncDurationCount * levelDetails.targetduration
            return sliding + Math.max(0, levelDetails.totalduration - targetLatency)
          }
        }, {
          key: 'state',
          set: function set (nextState) {
            if (this.state !== nextState) {
              var previousState = this.state
              this._state = nextState
              _logger.logger.log('main stream:' + previousState + '->' + nextState)
              this.hls.trigger(_events2.default.STREAM_STATE_TRANSITION, { previousState: previousState, nextState: nextState })
            }
          },
          get: function get () {
            return this._state
          }
        }, {
          key: 'currentLevel',
          get: function get () {
            var media = this.media
            if (media) {
              var frag = this.getBufferedFrag(media.currentTime)
              if (frag) {
                return frag.level
              }
            }
            return -1
          }
        }, {
          key: 'nextBufferedFrag',
          get: function get () {
            var media = this.media
            if (media) {
            // first get end range of current fragment
              return this.followingBufferedFrag(this.getBufferedFrag(media.currentTime))
            } else {
              return null
            }
          }
        }, {
          key: 'nextLevel',
          get: function get () {
            var frag = this.nextBufferedFrag
            if (frag) {
              return frag.level
            } else {
              return -1
            }
          }
        }, {
          key: 'liveSyncPosition',
          get: function get () {
            return this._liveSyncPosition
          },
          set: function set (value) {
            this._liveSyncPosition = value
          }
        }])

        return StreamController
      }(_eventHandler2.default))

      exports.default = StreamController
    }, { 24: 24, 30: 30, 31: 31, 32: 32, 34: 34, 35: 35, 45: 45, 50: 50, 51: 51 }],
    13: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _eventHandler = _dereq_(31)

      var _eventHandler2 = _interopRequireDefault(_eventHandler)

      var _logger = _dereq_(50)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      function _possibleConstructorReturn (self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called") } return call && (typeof call === 'object' || typeof call === 'function') ? call : self }

      function _inherits (subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass) } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass } /*
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * Subtitle Stream Controller
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               */

      var SubtitleStreamController = (function (_EventHandler) {
        _inherits(SubtitleStreamController, _EventHandler)

        function SubtitleStreamController (hls) {
          _classCallCheck(this, SubtitleStreamController)

          var _this = _possibleConstructorReturn(this, (SubtitleStreamController.__proto__ || Object.getPrototypeOf(SubtitleStreamController)).call(this, hls, _events2.default.ERROR, _events2.default.SUBTITLE_TRACKS_UPDATED, _events2.default.SUBTITLE_TRACK_SWITCH, _events2.default.SUBTITLE_TRACK_LOADED, _events2.default.SUBTITLE_FRAG_PROCESSED))

          _this.config = hls.config
          _this.vttFragSNsProcessed = {}
          _this.vttFragQueues = undefined
          _this.currentlyProcessing = null
          _this.currentTrackId = -1
          return _this
        }

        _createClass(SubtitleStreamController, [{
          key: 'destroy',
          value: function destroy () {
            _eventHandler2.default.prototype.destroy.call(this)
          }

          // Remove all queued items and create a new, empty queue for each track.

        }, {
          key: 'clearVttFragQueues',
          value: function clearVttFragQueues () {
            var _this2 = this

            this.vttFragQueues = {}
            this.tracks.forEach(function (track) {
              _this2.vttFragQueues[track.id] = []
            })
          }

          // If no frag is being processed and queue isn't empty, initiate processing of next frag in line.

        }, {
          key: 'nextFrag',
          value: function nextFrag () {
            if (this.currentlyProcessing === null && this.currentTrackId > -1 && this.vttFragQueues[this.currentTrackId].length) {
              var frag = this.currentlyProcessing = this.vttFragQueues[this.currentTrackId].shift()
              this.hls.trigger(_events2.default.FRAG_LOADING, { frag: frag })
            }
          }

          // When fragment has finished processing, add sn to list of completed if successful.

        }, {
          key: 'onSubtitleFragProcessed',
          value: function onSubtitleFragProcessed (data) {
            if (data.success) {
              this.vttFragSNsProcessed[data.frag.trackId].push(data.frag.sn)
            }
            this.currentlyProcessing = null
            this.nextFrag()
          }

          // If something goes wrong, procede to next frag, if we were processing one.

        }, {
          key: 'onError',
          value: function onError (data) {
            var frag = data.frag
            // don't handle frag error not related to subtitle fragment
            if (frag && frag.type !== 'subtitle') {
              return
            }
            if (this.currentlyProcessing) {
              this.currentlyProcessing = null
              this.nextFrag()
            }
          }

          // Got all new subtitle tracks.

        }, {
          key: 'onSubtitleTracksUpdated',
          value: function onSubtitleTracksUpdated (data) {
            var _this3 = this

            _logger.logger.log('subtitle tracks updated')
            this.tracks = data.subtitleTracks
            this.clearVttFragQueues()
            this.vttFragSNsProcessed = {}
            this.tracks.forEach(function (track) {
              _this3.vttFragSNsProcessed[track.id] = []
            })
          }
        }, {
          key: 'onSubtitleTrackSwitch',
          value: function onSubtitleTrackSwitch (data) {
            this.currentTrackId = data.id
            this.clearVttFragQueues()
          }

          // Got a new set of subtitle fragments.

        }, {
          key: 'onSubtitleTrackLoaded',
          value: function onSubtitleTrackLoaded (data) {
            var processedFragSNs = this.vttFragSNsProcessed[data.id]
            var fragQueue = this.vttFragQueues[data.id]
            var currentFragSN = this.currentlyProcessing ? this.currentlyProcessing.sn : -1

            var alreadyProcessed = function alreadyProcessed (frag) {
              return processedFragSNs.indexOf(frag.sn) > -1
            }

            var alreadyInQueue = function alreadyInQueue (frag) {
              return fragQueue.some(function (fragInQueue) {
                return fragInQueue.sn === frag.sn
              })
            }

            // Add all fragments that haven't been, aren't currently being and aren't waiting to be processed, to queue.
            data.details.fragments.forEach(function (frag) {
              if (!(alreadyProcessed(frag) || frag.sn === currentFragSN || alreadyInQueue(frag))) {
              // Frags don't know their subtitle track ID, so let's just add that...
                frag.trackId = data.id
                fragQueue.push(frag)
              }
            })

            this.nextFrag()
          }
        }])

        return SubtitleStreamController
      }(_eventHandler2.default))

      exports.default = SubtitleStreamController
    }, { 31: 31, 32: 32, 50: 50 }],
    14: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _eventHandler = _dereq_(31)

      var _eventHandler2 = _interopRequireDefault(_eventHandler)

      var _logger = _dereq_(50)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      function _possibleConstructorReturn (self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called") } return call && (typeof call === 'object' || typeof call === 'function') ? call : self }

      function _inherits (subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass) } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass } /*
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * audio track controller
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               */

      var SubtitleTrackController = (function (_EventHandler) {
        _inherits(SubtitleTrackController, _EventHandler)

        function SubtitleTrackController (hls) {
          _classCallCheck(this, SubtitleTrackController)

          var _this = _possibleConstructorReturn(this, (SubtitleTrackController.__proto__ || Object.getPrototypeOf(SubtitleTrackController)).call(this, hls, _events2.default.MEDIA_ATTACHED, _events2.default.MEDIA_DETACHING, _events2.default.MANIFEST_LOADING, _events2.default.MANIFEST_LOADED, _events2.default.SUBTITLE_TRACK_LOADED))

          _this.tracks = []
          _this.trackId = -1
          _this.media = undefined
          return _this
        }

        _createClass(SubtitleTrackController, [{
          key: 'destroy',
          value: function destroy () {
            _eventHandler2.default.prototype.destroy.call(this)
          }

          // Listen for subtitle track change, then extract the current track ID.

        }, {
          key: 'onMediaAttached',
          value: function onMediaAttached (data) {
            var _this2 = this

            this.media = data.media
            if (!this.media) {
              return
            }

            this.media.textTracks.addEventListener('change', function () {
            // Media is undefined when switching streams via loadSource()
              if (!_this2.media) {
                return
              }

              var trackId = -1
              var tracks = _this2.media.textTracks
              for (var id = 0; id < tracks.length; id++) {
                if (tracks[id].mode === 'showing') {
                  trackId = id
                }
              }
              // Setting current subtitleTrack will invoke code.
              _this2.subtitleTrack = trackId
            })
          }
        }, {
          key: 'onMediaDetaching',
          value: function onMediaDetaching () {
          // TODO: Remove event listeners.
            this.media = undefined
          }

          // Reset subtitle tracks on manifest loading

        }, {
          key: 'onManifestLoading',
          value: function onManifestLoading () {
            this.tracks = []
            this.trackId = -1
          }

          // Fired whenever a new manifest is loaded.

        }, {
          key: 'onManifestLoaded',
          value: function onManifestLoaded (data) {
            var _this3 = this

            var tracks = data.subtitles || []
            var defaultFound = false
            this.tracks = tracks
            this.trackId = -1
            this.hls.trigger(_events2.default.SUBTITLE_TRACKS_UPDATED, { subtitleTracks: tracks })

            // loop through available subtitle tracks and autoselect default if needed
            // TODO: improve selection logic to handle forced, etc
            tracks.forEach(function (track) {
              if (track.default) {
                _this3.subtitleTrack = track.id
                defaultFound = true
              }
            })
          }

          // Trigger subtitle track playlist reload.

        }, {
          key: 'onTick',
          value: function onTick () {
            var trackId = this.trackId
            var subtitleTrack = this.tracks[trackId]
            if (!subtitleTrack) {
              return
            }

            var details = subtitleTrack.details
            // check if we need to load playlist for this subtitle Track
            if (details === undefined || details.live === true) {
            // track not retrieved yet, or live playlist we need to (re)load it
              _logger.logger.log('(re)loading playlist for subtitle track ' + trackId)
              this.hls.trigger(_events2.default.SUBTITLE_TRACK_LOADING, { url: subtitleTrack.url, id: trackId })
            }
          }
        }, {
          key: 'onSubtitleTrackLoaded',
          value: function onSubtitleTrackLoaded (data) {
            var _this4 = this

            if (data.id < this.tracks.length) {
              _logger.logger.log('subtitle track ' + data.id + ' loaded')
              this.tracks[data.id].details = data.details
              // check if current playlist is a live playlist
              if (data.details.live && !this.timer) {
              // if live playlist we will have to reload it periodically
              // set reload period to playlist target duration
                this.timer = setInterval(function () {
                  _this4.onTick()
                }, 1000 * data.details.targetduration, this)
              }
              if (!data.details.live && this.timer) {
              // playlist is not live and timer is armed : stopping it
                clearInterval(this.timer)
                this.timer = null
              }
            }
          }

          /** get alternate subtitle tracks list from playlist **/

        }, {
          key: 'setSubtitleTrackInternal',
          value: function setSubtitleTrackInternal (newId) {
          // check if level idx is valid
            if (newId >= 0 && newId < this.tracks.length) {
            // stopping live reloading timer if any
              if (this.timer) {
                clearInterval(this.timer)
                this.timer = null
              }
              this.trackId = newId
              _logger.logger.log('switching to subtitle track ' + newId)
              var subtitleTrack = this.tracks[newId]
              this.hls.trigger(_events2.default.SUBTITLE_TRACK_SWITCH, { id: newId })
              // check if we need to load playlist for this subtitle Track
              var details = subtitleTrack.details
              if (details === undefined || details.live === true) {
              // track not retrieved yet, or live playlist we need to (re)load it
                _logger.logger.log('(re)loading playlist for subtitle track ' + newId)
                this.hls.trigger(_events2.default.SUBTITLE_TRACK_LOADING, { url: subtitleTrack.url, id: newId })
              }
            }
          }
        }, {
          key: 'subtitleTracks',
          get: function get () {
            return this.tracks
          }

          /** get index of the selected subtitle track (index in subtitle track lists) **/

        }, {
          key: 'subtitleTrack',
          get: function get () {
            return this.trackId
          },
          /** select a subtitle track, based on its index in subtitle track lists**/

          set: function set (subtitleTrackId) {
            if (this.trackId !== subtitleTrackId) {
            // || this.tracks[subtitleTrackId].details === undefined) {
              this.setSubtitleTrackInternal(subtitleTrackId)
            }
          }
        }])

        return SubtitleTrackController
      }(_eventHandler2.default))

      exports.default = SubtitleTrackController
    }, { 31: 31, 32: 32, 50: 50 }],
    15: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _eventHandler = _dereq_(31)

      var _eventHandler2 = _interopRequireDefault(_eventHandler)

      var _cea608Parser = _dereq_(46)

      var _cea608Parser2 = _interopRequireDefault(_cea608Parser)

      var _webvttParser = _dereq_(54)

      var _webvttParser2 = _interopRequireDefault(_webvttParser)

      var _logger = _dereq_(50)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      function _possibleConstructorReturn (self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called") } return call && (typeof call === 'object' || typeof call === 'function') ? call : self }

      function _inherits (subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass) } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass } /*
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * Timeline Controller
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               */

      function clearCurrentCues (track) {
        if (track && track.cues) {
          while (track.cues.length > 0) {
            track.removeCue(track.cues[0])
          }
        }
      }

      function reuseVttTextTrack (inUseTrack, manifestTrack) {
        return inUseTrack && inUseTrack.label === manifestTrack.name && !(inUseTrack.textTrack1 || inUseTrack.textTrack2)
      }

      function intersection (x1, x2, y1, y2) {
        return Math.min(x2, y2) - Math.max(x1, y1)
      }

      var TimelineController = (function (_EventHandler) {
        _inherits(TimelineController, _EventHandler)

        function TimelineController (hls) {
          _classCallCheck(this, TimelineController)

          var _this = _possibleConstructorReturn(this, (TimelineController.__proto__ || Object.getPrototypeOf(TimelineController)).call(this, hls, _events2.default.MEDIA_ATTACHING, _events2.default.MEDIA_DETACHING, _events2.default.FRAG_PARSING_USERDATA, _events2.default.MANIFEST_LOADING, _events2.default.MANIFEST_LOADED, _events2.default.FRAG_LOADED, _events2.default.LEVEL_SWITCHING, _events2.default.INIT_PTS_FOUND))

          _this.hls = hls
          _this.config = hls.config
          _this.enabled = true
          _this.Cues = hls.config.cueHandler
          _this.textTracks = []
          _this.tracks = []
          _this.unparsedVttFrags = []
          _this.initPTS = undefined
          _this.cueRanges = []

          if (_this.config.enableCEA708Captions) {
            var self = _this
            var sendAddTrackEvent = function sendAddTrackEvent (track, media) {
              var e = null
              try {
                e = new window.Event('addtrack')
              } catch (err) {
              // for IE11
                e = document.createEvent('Event')
                e.initEvent('addtrack', false, false)
              }
              e.track = track
              media.dispatchEvent(e)
            }

            var channel1 = {
              newCue: function newCue (startTime, endTime, screen) {
                if (!self.textTrack1) {
                // Enable reuse of existing text track.
                  var existingTrack1 = self.getExistingTrack('1')
                  if (!existingTrack1) {
                    var textTrack1 = self.createTextTrack('captions', self.config.captionsTextTrack1Label, self.config.captionsTextTrack1LanguageCode)
                    if (textTrack1) {
                      textTrack1.textTrack1 = true
                      self.textTrack1 = textTrack1
                    }
                  } else {
                    self.textTrack1 = existingTrack1
                    clearCurrentCues(self.textTrack1)

                    sendAddTrackEvent(self.textTrack1, self.media)
                  }
                }
                self.addCues('textTrack1', startTime, endTime, screen)
              }
            }

            var channel2 = {
              newCue: function newCue (startTime, endTime, screen) {
                if (!self.textTrack2) {
                // Enable reuse of existing text track.
                  var existingTrack2 = self.getExistingTrack('2')
                  if (!existingTrack2) {
                    var textTrack2 = self.createTextTrack('captions', self.config.captionsTextTrack2Label, self.config.captionsTextTrack1LanguageCode)
                    if (textTrack2) {
                      textTrack2.textTrack2 = true
                      self.textTrack2 = textTrack2
                    }
                  } else {
                    self.textTrack2 = existingTrack2
                    clearCurrentCues(self.textTrack2)

                    sendAddTrackEvent(self.textTrack2, self.media)
                  }
                }
                self.addCues('textTrack2', startTime, endTime, screen)
              }
            }

            _this.cea608Parser = new _cea608Parser2.default(0, channel1, channel2)
          }
          return _this
        }

        _createClass(TimelineController, [{
          key: 'addCues',
          value: function addCues (channel, startTime, endTime, screen) {
          // skip cues which overlap more than 50% with previously parsed time ranges
            var ranges = this.cueRanges
            var merged = false
            for (var i = ranges.length; i--;) {
              var cueRange = ranges[i]
              var overlap = intersection(cueRange[0], cueRange[1], startTime, endTime)
              if (overlap >= 0) {
                cueRange[0] = Math.min(cueRange[0], startTime)
                cueRange[1] = Math.max(cueRange[1], endTime)
                merged = true
                if (overlap / (endTime - startTime) > 0.5) {
                  return
                }
              }
            }
            if (!merged) {
              ranges.push([startTime, endTime])
            }
            this.Cues.newCue(this[channel], startTime, endTime, screen)
          }

          // Triggered when an initial PTS is found; used for synchronisation of WebVTT.

        }, {
          key: 'onInitPtsFound',
          value: function onInitPtsFound (data) {
            var _this2 = this

            if (typeof this.initPTS === 'undefined') {
              this.initPTS = data.initPTS
            }

            // Due to asynchrony, initial PTS may arrive later than the first VTT fragments are loaded.
            // Parse any unparsed fragments upon receiving the initial PTS.
            if (this.unparsedVttFrags.length) {
              this.unparsedVttFrags.forEach(function (frag) {
                _this2.onFragLoaded(frag)
              })
              this.unparsedVttFrags = []
            }
          }
        }, {
          key: 'getExistingTrack',
          value: function getExistingTrack (channelNumber) {
            var media = this.media
            if (media) {
              for (var i = 0; i < media.textTracks.length; i++) {
                var textTrack = media.textTracks[i]
                var propName = 'textTrack' + channelNumber
                if (textTrack[propName] === true) {
                  return textTrack
                }
              }
            }
            return null
          }
        }, {
          key: 'createTextTrack',
          value: function createTextTrack (kind, label, lang) {
            var media = this.media
            if (media) {
              return media.addTextTrack(kind, label, lang)
            }
          }
        }, {
          key: 'destroy',
          value: function destroy () {
            _eventHandler2.default.prototype.destroy.call(this)
          }
        }, {
          key: 'onMediaAttaching',
          value: function onMediaAttaching (data) {
            this.media = data.media
          }
        }, {
          key: 'onMediaDetaching',
          value: function onMediaDetaching () {
            clearCurrentCues(this.textTrack1)
            clearCurrentCues(this.textTrack2)
          }
        }, {
          key: 'onManifestLoading',
          value: function onManifestLoading () {
            this.lastSn = -1 // Detect discontiguity in fragment parsing
            this.prevCC = -1
            this.vttCCs = { ccOffset: 0, presentationOffset: 0 } // Detect discontinuity in subtitle manifests

            // clear outdated subtitles
            var media = this.media
            if (media) {
              var textTracks = media.textTracks
              if (textTracks) {
                for (var i = 0; i < textTracks.length; i++) {
                  clearCurrentCues(textTracks[i])
                }
              }
            }
          }
        }, {
          key: 'onManifestLoaded',
          value: function onManifestLoaded (data) {
            var _this3 = this

            this.textTracks = []
            this.unparsedVttFrags = this.unparsedVttFrags || []
            this.initPTS = undefined
            this.cueRanges = []

            if (this.config.enableWebVTT) {
              this.tracks = data.subtitles || []
              var inUseTracks = this.media ? this.media.textTracks : []

              this.tracks.forEach(function (track, index) {
                var textTrack = void 0
                if (index < inUseTracks.length) {
                  var inUseTrack = inUseTracks[index]
                  // Reuse tracks with the same label, but do not reuse 608/708 tracks
                  if (reuseVttTextTrack(inUseTrack, track)) {
                    textTrack = inUseTrack
                  }
                }
                if (!textTrack) {
                  textTrack = _this3.createTextTrack('subtitles', track.name, track.lang)
                }
                textTrack.mode = track.default ? 'showing' : 'hidden'
                _this3.textTracks.push(textTrack)
              })
            }
          }
        }, {
          key: 'onLevelSwitching',
          value: function onLevelSwitching () {
            this.enabled = this.hls.currentLevel.closedCaptions !== 'NONE'
          }
        }, {
          key: 'onFragLoaded',
          value: function onFragLoaded (data) {
            var frag = data.frag
            var payload = data.payload
            if (frag.type === 'main') {
              var sn = frag.sn
              // if this frag isn't contiguous, clear the parser so cues with bad start/end times aren't added to the textTrack
              if (sn !== this.lastSn + 1) {
                this.cea608Parser.reset()
              }
              this.lastSn = sn
            }
            // If fragment is subtitle type, parse as WebVTT.
            else if (frag.type === 'subtitle') {
              if (payload.byteLength) {
                // We need an initial synchronisation PTS. Store fragments as long as none has arrived.
                if (typeof this.initPTS === 'undefined') {
                  this.unparsedVttFrags.push(data)
                  return
                }
                var vttCCs = this.vttCCs
                if (!vttCCs[frag.cc]) {
                  vttCCs[frag.cc] = { start: frag.start, prevCC: this.prevCC, new: true }
                  this.prevCC = frag.cc
                }
                var textTracks = this.textTracks
                var hls = this.hls

                // Parse the WebVTT file contents.
                _webvttParser2.default.parse(payload, this.initPTS, vttCCs, frag.cc, function (cues) {
                  // Add cues and trigger event with success true.
                  cues.forEach(function (cue) {
                    textTracks[frag.trackId].addCue(cue)
                  })
                  hls.trigger(_events2.default.SUBTITLE_FRAG_PROCESSED, { success: true, frag: frag })
                }, function (e) {
                  // Something went wrong while parsing. Trigger event with success false.
                  _logger.logger.log('Failed to parse VTT cue: ' + e)
                  hls.trigger(_events2.default.SUBTITLE_FRAG_PROCESSED, { success: false, frag: frag })
                })
              } else {
                // In case there is no payload, finish unsuccessfully.
                this.hls.trigger(_events2.default.SUBTITLE_FRAG_PROCESSED, { success: false, frag: frag })
              }
            }
          }
        }, {
          key: 'onFragParsingUserdata',
          value: function onFragParsingUserdata (data) {
          // push all of the CEA-708 messages into the interpreter
          // immediately. It will create the proper timestamps based on our PTS value
            if (this.enabled && this.config.enableCEA708Captions) {
              for (var i = 0; i < data.samples.length; i++) {
                var ccdatas = this.extractCea608Data(data.samples[i].bytes)
                this.cea608Parser.addData(data.samples[i].pts, ccdatas)
              }
            }
          }
        }, {
          key: 'extractCea608Data',
          value: function extractCea608Data (byteArray) {
            var count = byteArray[0] & 31
            var position = 2
            var tmpByte, ccbyte1, ccbyte2, ccValid, ccType
            var actualCCBytes = []

            for (var j = 0; j < count; j++) {
              tmpByte = byteArray[position++]
              ccbyte1 = 0x7F & byteArray[position++]
              ccbyte2 = 0x7F & byteArray[position++]
              ccValid = (4 & tmpByte) !== 0
              ccType = 3 & tmpByte

              if (ccbyte1 === 0 && ccbyte2 === 0) {
                continue
              }

              if (ccValid) {
                if (ccType === 0) // || ccType === 1
                {
                  actualCCBytes.push(ccbyte1)
                  actualCCBytes.push(ccbyte2)
                }
              }
            }
            return actualCCBytes
          }
        }])

        return TimelineController
      }(_eventHandler2.default))

      exports.default = TimelineController
    }, { 31: 31, 32: 32, 46: 46, 50: 50, 54: 54 }],
    16: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      var AESCrypto = (function () {
        function AESCrypto (subtle, iv) {
          _classCallCheck(this, AESCrypto)

          this.subtle = subtle
          this.aesIV = iv
        }

        _createClass(AESCrypto, [{
          key: 'decrypt',
          value: function decrypt (data, key) {
            return this.subtle.decrypt({ name: 'AES-CBC', iv: this.aesIV }, key, data)
          }
        }])

        return AESCrypto
      }())

      exports.default = AESCrypto
    }, {}],
    17: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      var AESDecryptor = (function () {
        function AESDecryptor () {
          _classCallCheck(this, AESDecryptor)

          // Static after running initTable
          this.rcon = [0x0, 0x1, 0x2, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36]
          this.subMix = [new Uint32Array(256), new Uint32Array(256), new Uint32Array(256), new Uint32Array(256)]
          this.invSubMix = [new Uint32Array(256), new Uint32Array(256), new Uint32Array(256), new Uint32Array(256)]
          this.sBox = new Uint32Array(256)
          this.invSBox = new Uint32Array(256)

          // Changes during runtime
          this.key = new Uint32Array(0)

          this.initTable()
        }

        // Using view.getUint32() also swaps the byte order.

        _createClass(AESDecryptor, [{
          key: 'uint8ArrayToUint32Array_',
          value: function uint8ArrayToUint32Array_ (arrayBuffer) {
            var view = new DataView(arrayBuffer)
            var newArray = new Uint32Array(4)
            for (var i = 0; i < 4; i++) {
              newArray[i] = view.getUint32(i * 4)
            }
            return newArray
          }
        }, {
          key: 'initTable',
          value: function initTable () {
            var sBox = this.sBox
            var invSBox = this.invSBox
            var subMix = this.subMix
            var subMix0 = subMix[0]
            var subMix1 = subMix[1]
            var subMix2 = subMix[2]
            var subMix3 = subMix[3]
            var invSubMix = this.invSubMix
            var invSubMix0 = invSubMix[0]
            var invSubMix1 = invSubMix[1]
            var invSubMix2 = invSubMix[2]
            var invSubMix3 = invSubMix[3]

            var d = new Uint32Array(256)
            var x = 0
            var xi = 0
            var i = 0
            for (i = 0; i < 256; i++) {
              if (i < 128) {
                d[i] = i << 1
              } else {
                d[i] = i << 1 ^ 0x11b
              }
            }

            for (i = 0; i < 256; i++) {
              var sx = xi ^ xi << 1 ^ xi << 2 ^ xi << 3 ^ xi << 4
              sx = sx >>> 8 ^ sx & 0xff ^ 0x63
              sBox[x] = sx
              invSBox[sx] = x

              // Compute multiplication
              var x2 = d[x]
              var x4 = d[x2]
              var x8 = d[x4]

              // Compute sub/invSub bytes, mix columns tables
              var t = d[sx] * 0x101 ^ sx * 0x1010100
              subMix0[x] = t << 24 | t >>> 8
              subMix1[x] = t << 16 | t >>> 16
              subMix2[x] = t << 8 | t >>> 24
              subMix3[x] = t

              // Compute inv sub bytes, inv mix columns tables
              t = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100
              invSubMix0[sx] = t << 24 | t >>> 8
              invSubMix1[sx] = t << 16 | t >>> 16
              invSubMix2[sx] = t << 8 | t >>> 24
              invSubMix3[sx] = t

              // Compute next counter
              if (!x) {
                x = xi = 1
              } else {
                x = x2 ^ d[d[d[x8 ^ x2]]]
                xi ^= d[d[xi]]
              }
            }
          }
        }, {
          key: 'expandKey',
          value: function expandKey (keyBuffer) {
          // convert keyBuffer to Uint32Array
            var key = this.uint8ArrayToUint32Array_(keyBuffer)
            var sameKey = true
            var offset = 0

            while (offset < key.length && sameKey) {
              sameKey = key[offset] === this.key[offset]
              offset++
            }

            if (sameKey) {
              return
            }

            this.key = key
            var keySize = this.keySize = key.length

            if (keySize !== 4 && keySize !== 6 && keySize !== 8) {
              throw new Error('Invalid aes key size=' + keySize)
            }

            var ksRows = this.ksRows = (keySize + 6 + 1) * 4
            var ksRow = void 0
            var invKsRow = void 0

            var keySchedule = this.keySchedule = new Uint32Array(ksRows)
            var invKeySchedule = this.invKeySchedule = new Uint32Array(ksRows)
            var sbox = this.sBox
            var rcon = this.rcon

            var invSubMix = this.invSubMix
            var invSubMix0 = invSubMix[0]
            var invSubMix1 = invSubMix[1]
            var invSubMix2 = invSubMix[2]
            var invSubMix3 = invSubMix[3]

            var prev = void 0
            var t = void 0

            for (ksRow = 0; ksRow < ksRows; ksRow++) {
              if (ksRow < keySize) {
                prev = keySchedule[ksRow] = key[ksRow]
                continue
              }
              t = prev

              if (ksRow % keySize === 0) {
              // Rot word
                t = t << 8 | t >>> 24

                // Sub word
                t = sbox[t >>> 24] << 24 | sbox[t >>> 16 & 0xff] << 16 | sbox[t >>> 8 & 0xff] << 8 | sbox[t & 0xff]

                // Mix Rcon
                t ^= rcon[ksRow / keySize | 0] << 24
              } else if (keySize > 6 && ksRow % keySize === 4) {
              // Sub word
                t = sbox[t >>> 24] << 24 | sbox[t >>> 16 & 0xff] << 16 | sbox[t >>> 8 & 0xff] << 8 | sbox[t & 0xff]
              }

              keySchedule[ksRow] = prev = (keySchedule[ksRow - keySize] ^ t) >>> 0
            }

            for (invKsRow = 0; invKsRow < ksRows; invKsRow++) {
              ksRow = ksRows - invKsRow
              if (invKsRow & 3) {
                t = keySchedule[ksRow]
              } else {
                t = keySchedule[ksRow - 4]
              }

              if (invKsRow < 4 || ksRow <= 4) {
                invKeySchedule[invKsRow] = t
              } else {
                invKeySchedule[invKsRow] = invSubMix0[sbox[t >>> 24]] ^ invSubMix1[sbox[t >>> 16 & 0xff]] ^ invSubMix2[sbox[t >>> 8 & 0xff]] ^ invSubMix3[sbox[t & 0xff]]
              }

              invKeySchedule[invKsRow] = invKeySchedule[invKsRow] >>> 0
            }
          }

          // Adding this as a method greatly improves performance.

        }, {
          key: 'networkToHostOrderSwap',
          value: function networkToHostOrderSwap (word) {
            return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24
          }
        }, {
          key: 'decrypt',
          value: function decrypt (inputArrayBuffer, offset, aesIV) {
            var nRounds = this.keySize + 6
            var invKeySchedule = this.invKeySchedule
            var invSBOX = this.invSBox

            var invSubMix = this.invSubMix
            var invSubMix0 = invSubMix[0]
            var invSubMix1 = invSubMix[1]
            var invSubMix2 = invSubMix[2]
            var invSubMix3 = invSubMix[3]

            var initVector = this.uint8ArrayToUint32Array_(aesIV)
            var initVector0 = initVector[0]
            var initVector1 = initVector[1]
            var initVector2 = initVector[2]
            var initVector3 = initVector[3]

            var inputInt32 = new Int32Array(inputArrayBuffer)
            var outputInt32 = new Int32Array(inputInt32.length)

            var t0 = void 0
            var t1 = void 0
            var t2 = void 0
            var t3 = void 0
            var s0 = void 0
            var s1 = void 0
            var s2 = void 0
            var s3 = void 0
            var inputWords0 = void 0
            var inputWords1 = void 0
            var inputWords2 = void 0
            var inputWords3 = void 0

            var ksRow, i
            var swapWord = this.networkToHostOrderSwap

            while (offset < inputInt32.length) {
              inputWords0 = swapWord(inputInt32[offset])
              inputWords1 = swapWord(inputInt32[offset + 1])
              inputWords2 = swapWord(inputInt32[offset + 2])
              inputWords3 = swapWord(inputInt32[offset + 3])

              s0 = inputWords0 ^ invKeySchedule[0]
              s1 = inputWords3 ^ invKeySchedule[1]
              s2 = inputWords2 ^ invKeySchedule[2]
              s3 = inputWords1 ^ invKeySchedule[3]

              ksRow = 4

              // Iterate through the rounds of decryption
              for (i = 1; i < nRounds; i++) {
                t0 = invSubMix0[s0 >>> 24] ^ invSubMix1[s1 >> 16 & 0xff] ^ invSubMix2[s2 >> 8 & 0xff] ^ invSubMix3[s3 & 0xff] ^ invKeySchedule[ksRow]
                t1 = invSubMix0[s1 >>> 24] ^ invSubMix1[s2 >> 16 & 0xff] ^ invSubMix2[s3 >> 8 & 0xff] ^ invSubMix3[s0 & 0xff] ^ invKeySchedule[ksRow + 1]
                t2 = invSubMix0[s2 >>> 24] ^ invSubMix1[s3 >> 16 & 0xff] ^ invSubMix2[s0 >> 8 & 0xff] ^ invSubMix3[s1 & 0xff] ^ invKeySchedule[ksRow + 2]
                t3 = invSubMix0[s3 >>> 24] ^ invSubMix1[s0 >> 16 & 0xff] ^ invSubMix2[s1 >> 8 & 0xff] ^ invSubMix3[s2 & 0xff] ^ invKeySchedule[ksRow + 3]
                // Update state
                s0 = t0
                s1 = t1
                s2 = t2
                s3 = t3

                ksRow = ksRow + 4
              }

              // Shift rows, sub bytes, add round key
              t0 = invSBOX[s0 >>> 24] << 24 ^ invSBOX[s1 >> 16 & 0xff] << 16 ^ invSBOX[s2 >> 8 & 0xff] << 8 ^ invSBOX[s3 & 0xff] ^ invKeySchedule[ksRow]
              t1 = invSBOX[s1 >>> 24] << 24 ^ invSBOX[s2 >> 16 & 0xff] << 16 ^ invSBOX[s3 >> 8 & 0xff] << 8 ^ invSBOX[s0 & 0xff] ^ invKeySchedule[ksRow + 1]
              t2 = invSBOX[s2 >>> 24] << 24 ^ invSBOX[s3 >> 16 & 0xff] << 16 ^ invSBOX[s0 >> 8 & 0xff] << 8 ^ invSBOX[s1 & 0xff] ^ invKeySchedule[ksRow + 2]
              t3 = invSBOX[s3 >>> 24] << 24 ^ invSBOX[s0 >> 16 & 0xff] << 16 ^ invSBOX[s1 >> 8 & 0xff] << 8 ^ invSBOX[s2 & 0xff] ^ invKeySchedule[ksRow + 3]
              ksRow = ksRow + 3

              // Write
              outputInt32[offset] = swapWord(t0 ^ initVector0)
              outputInt32[offset + 1] = swapWord(t3 ^ initVector1)
              outputInt32[offset + 2] = swapWord(t2 ^ initVector2)
              outputInt32[offset + 3] = swapWord(t1 ^ initVector3)

              // reset initVector to last 4 unsigned int
              initVector0 = inputWords0
              initVector1 = inputWords1
              initVector2 = inputWords2
              initVector3 = inputWords3

              offset = offset + 4
            }

            return outputInt32.buffer
          }
        }, {
          key: 'destroy',
          value: function destroy () {
            this.key = undefined
            this.keySize = undefined
            this.ksRows = undefined

            this.sBox = undefined
            this.invSBox = undefined
            this.subMix = undefined
            this.invSubMix = undefined
            this.keySchedule = undefined
            this.invKeySchedule = undefined

            this.rcon = undefined
          }
        }])

        return AESDecryptor
      }())

      exports.default = AESDecryptor
    }, {}],
    18: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      var _aesCrypto = _dereq_(16)

      var _aesCrypto2 = _interopRequireDefault(_aesCrypto)

      var _fastAesKey = _dereq_(19)

      var _fastAesKey2 = _interopRequireDefault(_fastAesKey)

      var _aesDecryptor = _dereq_(17)

      var _aesDecryptor2 = _interopRequireDefault(_aesDecryptor)

      var _errors = _dereq_(30)

      var _logger = _dereq_(50)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      /* globals self: false */

      var Decrypter = (function () {
        function Decrypter (observer, config) {
          _classCallCheck(this, Decrypter)

          this.observer = observer
          this.config = config
          this.logEnabled = true
          try {
            var browserCrypto = crypto || self.crypto
            this.subtle = browserCrypto.subtle || browserCrypto.webkitSubtle
          } catch (e) {}
          this.disableWebCrypto = !this.subtle
        }

        _createClass(Decrypter, [{
          key: 'isSync',
          value: function isSync () {
            return this.disableWebCrypto && this.config.enableSoftwareAES
          }
        }, {
          key: 'decrypt',
          value: function decrypt (data, key, iv, callback) {
            var _this = this

            if (this.disableWebCrypto && this.config.enableSoftwareAES) {
              if (this.logEnabled) {
                _logger.logger.log('JS AES decrypt')
                this.logEnabled = false
              }
              var decryptor = this.decryptor
              if (!decryptor) {
                this.decryptor = decryptor = new _aesDecryptor2.default()
              }
              decryptor.expandKey(key)
              callback(decryptor.decrypt(data, 0, iv))
            } else {
              if (this.logEnabled) {
                _logger.logger.log('WebCrypto AES decrypt')
                this.logEnabled = false
              }
              var subtle = this.subtle
              if (this.key !== key) {
                this.key = key
                this.fastAesKey = new _fastAesKey2.default(subtle, key)
              }

              this.fastAesKey.expandKey().then(function (aesKey) {
              // decrypt using web crypto
                var crypto = new _aesCrypto2.default(subtle, iv)
                crypto.decrypt(data, aesKey).catch(function (err) {
                  _this.onWebCryptoError(err, data, key, iv, callback)
                }).then(function (result) {
                  callback(result)
                })
              }).catch(function (err) {
                _this.onWebCryptoError(err, data, key, iv, callback)
              })
            }
          }
        }, {
          key: 'onWebCryptoError',
          value: function onWebCryptoError (err, data, key, iv, callback) {
            if (this.config.enableSoftwareAES) {
              _logger.logger.log('WebCrypto Error, disable WebCrypto API')
              this.disableWebCrypto = true
              this.logEnabled = true
              this.decrypt(data, key, iv, callback)
            } else {
              _logger.logger.error('decrypting error : ' + err.message)
              this.observer.trigger(Event.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.FRAG_DECRYPT_ERROR, fatal: true, reason: err.message })
            }
          }
        }, {
          key: 'destroy',
          value: function destroy () {
            var decryptor = this.decryptor
            if (decryptor) {
              decryptor.destroy()
              this.decryptor = undefined
            }
          }
        }])

        return Decrypter
      }())

      exports.default = Decrypter
    }, { 16: 16, 17: 17, 19: 19, 30: 30, 50: 50 }],
    19: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      var FastAESKey = (function () {
        function FastAESKey (subtle, key) {
          _classCallCheck(this, FastAESKey)

          this.subtle = subtle
          this.key = key
        }

        _createClass(FastAESKey, [{
          key: 'expandKey',
          value: function expandKey () {
            return this.subtle.importKey('raw', this.key, { name: 'AES-CBC' }, false, ['encrypt', 'decrypt'])
          }
        }])

        return FastAESKey
      }())

      exports.default = FastAESKey
    }, {}],
    20: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }()) /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * AAC demuxer
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      */

      var _adts = _dereq_(21)

      var _adts2 = _interopRequireDefault(_adts)

      var _logger = _dereq_(50)

      var _id = _dereq_(26)

      var _id2 = _interopRequireDefault(_id)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      var AACDemuxer = (function () {
        function AACDemuxer (observer, remuxer, config) {
          _classCallCheck(this, AACDemuxer)

          this.observer = observer
          this.config = config
          this.remuxer = remuxer
        }

        _createClass(AACDemuxer, [{
          key: 'resetInitSegment',
          value: function resetInitSegment (initSegment, audioCodec, videoCodec, duration) {
            this._aacTrack = { container: 'audio/adts', type: 'audio', id: -1, sequenceNumber: 0, isAAC: true, samples: [], len: 0, manifestCodec: audioCodec, duration: duration, inputTimeScale: 90000 }
          }
        }, {
          key: 'resetTimeStamp',
          value: function resetTimeStamp () {}
        }, {
          key: 'append',

          // feed incoming data to the front of the parsing pipeline
          value: function append (data, timeOffset, contiguous, accurateTimeOffset) {
            var track
            var id3 = new _id2.default(data)
            var pts = 90 * id3.timeStamp
            var config
            var frameLength
            var frameDuration
            var frameIndex
            var offset
            var headerLength
            var stamp
            var len
            var aacSample

            track = this._aacTrack

            // look for ADTS header (0xFFFx)
            for (offset = id3.length, len = data.length; offset < len - 1; offset++) {
              if (data[offset] === 0xff && (data[offset + 1] & 0xf0) === 0xf0) {
                break
              }
            }

            if (!track.samplerate) {
              config = _adts2.default.getAudioConfig(this.observer, data, offset, track.manifestCodec)
              track.config = config.config
              track.samplerate = config.samplerate
              track.channelCount = config.channelCount
              track.codec = config.codec
              _logger.logger.log('parsed codec:' + track.codec + ',rate:' + config.samplerate + ',nb channel:' + config.channelCount)
            }
            frameIndex = 0
            frameDuration = 1024 * 90000 / track.samplerate
            while (offset + 5 < len) {
            // The protection skip bit tells us if we have 2 bytes of CRC data at the end of the ADTS header
              headerLength = data[offset + 1] & 0x01 ? 7 : 9
              // retrieve frame size
              frameLength = (data[offset + 3] & 0x03) << 11 | data[offset + 4] << 3 | (data[offset + 5] & 0xE0) >>> 5
              frameLength -= headerLength
              // stamp = pes.pts;

              if (frameLength > 0 && offset + headerLength + frameLength <= len) {
                stamp = pts + frameIndex * frameDuration
                // logger.log(`AAC frame, offset/length/total/pts:${offset+headerLength}/${frameLength}/${data.byteLength}/${(stamp/90).toFixed(0)}`);
                aacSample = { unit: data.subarray(offset + headerLength, offset + headerLength + frameLength), pts: stamp, dts: stamp }
                track.samples.push(aacSample)
                track.len += frameLength
                offset += frameLength + headerLength
                frameIndex++
                // look for ADTS header (0xFFFx)
                for (; offset < len - 1; offset++) {
                  if (data[offset] === 0xff && (data[offset + 1] & 0xf0) === 0xf0) {
                    break
                  }
                }
              } else {
                break
              }
            }
            this.remuxer.remux(track, { samples: [] }, { samples: [{ pts: pts, dts: pts, unit: id3.payload }] }, { samples: [] }, timeOffset, contiguous, accurateTimeOffset)
          }
        }, {
          key: 'destroy',
          value: function destroy () {}
        }], [{
          key: 'probe',
          value: function probe (data) {
          // check if data contains ID3 timestamp and ADTS sync worc
            var id3 = new _id2.default(data)
            var offset
            var len
            if (id3.hasTimeStamp) {
            // look for ADTS header (0xFFFx)
              for (offset = id3.length, len = data.length; offset < len - 1; offset++) {
                if (data[offset] === 0xff && (data[offset + 1] & 0xf0) === 0xf0) {
                // logger.log('ADTS sync word found !');
                  return true
                }
              }
            }
            return false
          }
        }])

        return AACDemuxer
      }())

      exports.default = AACDemuxer
    }, { 21: 21, 26: 26, 50: 50 }],
    21: [function (_dereq_, module, exports) {
      'use strict'

      var _logger = _dereq_(50)

      var _errors = _dereq_(30)

      /**
 *  ADTS parser helper
 */
      var ADTS = {
        getAudioConfig: function getAudioConfig (observer, data, offset, audioCodec) {
          var adtsObjectType
          // :int
          var adtsSampleingIndex
          // :int
          var adtsExtensionSampleingIndex
          // :int
          var adtsChanelConfig
          // :int
          var config
          var userAgent = navigator.userAgent.toLowerCase()
          var manifestCodec = audioCodec
          var adtsSampleingRates = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350]
          // byte 2
          adtsObjectType = ((data[offset + 2] & 0xC0) >>> 6) + 1
          adtsSampleingIndex = (data[offset + 2] & 0x3C) >>> 2
          if (adtsSampleingIndex > adtsSampleingRates.length - 1) {
            observer.trigger(Event.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.FRAG_PARSING_ERROR, fatal: true, reason: 'invalid ADTS sampling index:' + adtsSampleingIndex })
            return
          }
          adtsChanelConfig = (data[offset + 2] & 0x01) << 2
          // byte 3
          adtsChanelConfig |= (data[offset + 3] & 0xC0) >>> 6
          _logger.logger.log('manifest codec:' + audioCodec + ',ADTS data:type:' + adtsObjectType + ',sampleingIndex:' + adtsSampleingIndex + '[' + adtsSampleingRates[adtsSampleingIndex] + 'Hz],channelConfig:' + adtsChanelConfig)
          // firefox: freq less than 24kHz = AAC SBR (HE-AAC)
          if (/firefox/i.test(userAgent)) {
            if (adtsSampleingIndex >= 6) {
              adtsObjectType = 5
              config = new Array(4)
              // HE-AAC uses SBR (Spectral Band Replication) , high frequencies are constructed from low frequencies
              // there is a factor 2 between frame sample rate and output sample rate
              // multiply frequency by 2 (see table below, equivalent to substract 3)
              adtsExtensionSampleingIndex = adtsSampleingIndex - 3
            } else {
              adtsObjectType = 2
              config = new Array(2)
              adtsExtensionSampleingIndex = adtsSampleingIndex
            }
          // Android : always use AAC
          } else if (userAgent.indexOf('android') !== -1) {
            adtsObjectType = 2
            config = new Array(2)
            adtsExtensionSampleingIndex = adtsSampleingIndex
          } else {
          /*  for other browsers (Chrome/Vivaldi/Opera ...)
          always force audio type to be HE-AAC SBR, as some browsers do not support audio codec switch properly (like Chrome ...)
      */
            adtsObjectType = 5
            config = new Array(4)
            // if (manifest codec is HE-AAC or HE-AACv2) OR (manifest codec not specified AND frequency less than 24kHz)
            if (audioCodec && (audioCodec.indexOf('mp4a.40.29') !== -1 || audioCodec.indexOf('mp4a.40.5') !== -1) || !audioCodec && adtsSampleingIndex >= 6) {
            // HE-AAC uses SBR (Spectral Band Replication) , high frequencies are constructed from low frequencies
            // there is a factor 2 between frame sample rate and output sample rate
            // multiply frequency by 2 (see table below, equivalent to substract 3)
              adtsExtensionSampleingIndex = adtsSampleingIndex - 3
            } else {
            // if (manifest codec is AAC) AND (frequency less than 24kHz AND nb channel is 1) OR (manifest codec not specified and mono audio)
            // Chrome fails to play back with low frequency AAC LC mono when initialized with HE-AAC.  This is not a problem with stereo.
              if (audioCodec && audioCodec.indexOf('mp4a.40.2') !== -1 && adtsSampleingIndex >= 6 && adtsChanelConfig === 1 || !audioCodec && adtsChanelConfig === 1) {
                adtsObjectType = 2
                config = new Array(2)
              }
              adtsExtensionSampleingIndex = adtsSampleingIndex
            }
          }
          /* refer to http://wiki.multimedia.cx/index.php?title=MPEG-4_Audio#Audio_Specific_Config
        ISO 14496-3 (AAC).pdf - Table 1.13 — Syntax of AudioSpecificConfig()
      Audio Profile / Audio Object Type
      0: Null
      1: AAC Main
      2: AAC LC (Low Complexity)
      3: AAC SSR (Scalable Sample Rate)
      4: AAC LTP (Long Term Prediction)
      5: SBR (Spectral Band Replication)
      6: AAC Scalable
     sampling freq
      0: 96000 Hz
      1: 88200 Hz
      2: 64000 Hz
      3: 48000 Hz
      4: 44100 Hz
      5: 32000 Hz
      6: 24000 Hz
      7: 22050 Hz
      8: 16000 Hz
      9: 12000 Hz
      10: 11025 Hz
      11: 8000 Hz
      12: 7350 Hz
      13: Reserved
      14: Reserved
      15: frequency is written explictly
      Channel Configurations
      These are the channel configurations:
      0: Defined in AOT Specifc Config
      1: 1 channel: front-center
      2: 2 channels: front-left, front-right
    */
          // audioObjectType = profile => profile, the MPEG-4 Audio Object Type minus 1
          config[0] = adtsObjectType << 3
          // samplingFrequencyIndex
          config[0] |= (adtsSampleingIndex & 0x0E) >> 1
          config[1] |= (adtsSampleingIndex & 0x01) << 7
          // channelConfiguration
          config[1] |= adtsChanelConfig << 3
          if (adtsObjectType === 5) {
          // adtsExtensionSampleingIndex
            config[1] |= (adtsExtensionSampleingIndex & 0x0E) >> 1
            config[2] = (adtsExtensionSampleingIndex & 0x01) << 7
            // adtsObjectType (force to 2, chrome is checking that object type is less than 5 ???
            //    https://chromium.googlesource.com/chromium/src.git/+/master/media/formats/mp4/aac.cc
            config[2] |= 2 << 2
            config[3] = 0
          }
          return { config: config, samplerate: adtsSampleingRates[adtsSampleingIndex], channelCount: adtsChanelConfig, codec: 'mp4a.40.' + adtsObjectType, manifestCodec: manifestCodec }
        }
      }

      module.exports = ADTS
    }, { 30: 30, 50: 50 }],
    22: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }()) /*  inline demuxer.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      *   probe fragments and instantiate appropriate demuxer depending on content type (TSDemuxer, AACDemuxer, ...)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      */

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _errors = _dereq_(30)

      var _decrypter = _dereq_(18)

      var _decrypter2 = _interopRequireDefault(_decrypter)

      var _aacdemuxer = _dereq_(20)

      var _aacdemuxer2 = _interopRequireDefault(_aacdemuxer)

      var _mp4demuxer = _dereq_(27)

      var _mp4demuxer2 = _interopRequireDefault(_mp4demuxer)

      var _tsdemuxer = _dereq_(29)

      var _tsdemuxer2 = _interopRequireDefault(_tsdemuxer)

      var _mp4Remuxer = _dereq_(42)

      var _mp4Remuxer2 = _interopRequireDefault(_mp4Remuxer)

      var _passthroughRemuxer = _dereq_(43)

      var _passthroughRemuxer2 = _interopRequireDefault(_passthroughRemuxer)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      var DemuxerInline = (function () {
        function DemuxerInline (observer, typeSupported, config, vendor) {
          _classCallCheck(this, DemuxerInline)

          this.observer = observer
          this.typeSupported = typeSupported
          this.config = config
          this.vendor = vendor
        }

        _createClass(DemuxerInline, [{
          key: 'destroy',
          value: function destroy () {
            var demuxer = this.demuxer
            if (demuxer) {
              demuxer.destroy()
            }
          }
        }, {
          key: 'push',
          value: function push (data, decryptdata, initSegment, audioCodec, videoCodec, timeOffset, discontinuity, trackSwitch, contiguous, duration, accurateTimeOffset, defaultInitPTS) {
            if (data.byteLength > 0 && decryptdata != null && decryptdata.key != null && decryptdata.method === 'AES-128') {
              var decrypter = this.decrypter
              if (decrypter == null) {
                decrypter = this.decrypter = new _decrypter2.default(this.observer, this.config)
              }
              var localthis = this
              // performance.now() not available on WebWorker, at least on Safari Desktop
              var startTime
              try {
                startTime = performance.now()
              } catch (error) {
                startTime = Date.now()
              }
              decrypter.decrypt(data, decryptdata.key.buffer, decryptdata.iv.buffer, function (decryptedData) {
                var endTime
                try {
                  endTime = performance.now()
                } catch (error) {
                  endTime = Date.now()
                }
                localthis.observer.trigger(_events2.default.FRAG_DECRYPTED, { stats: { tstart: startTime, tdecrypt: endTime } })
                localthis.pushDecrypted(new Uint8Array(decryptedData), decryptdata, new Uint8Array(initSegment), audioCodec, videoCodec, timeOffset, discontinuity, trackSwitch, contiguous, duration, accurateTimeOffset, defaultInitPTS)
              })
            } else {
              this.pushDecrypted(new Uint8Array(data), decryptdata, new Uint8Array(initSegment), audioCodec, videoCodec, timeOffset, discontinuity, trackSwitch, contiguous, duration, accurateTimeOffset, defaultInitPTS)
            }
          }
        }, {
          key: 'pushDecrypted',
          value: function pushDecrypted (data, decryptdata, initSegment, audioCodec, videoCodec, timeOffset, discontinuity, trackSwitch, contiguous, duration, accurateTimeOffset, defaultInitPTS) {
            var demuxer = this.demuxer
            if (!demuxer ||
      // in case of continuity change, we might switch from content type (AAC container to TS container for example)
      // so let's check that current demuxer is still valid
      discontinuity && !this.probe(data)) {
              var observer = this.observer
              var typeSupported = this.typeSupported
              var config = this.config
              var muxConfig = [{ demux: _tsdemuxer2.default, remux: _mp4Remuxer2.default }, { demux: _aacdemuxer2.default, remux: _mp4Remuxer2.default }, { demux: _mp4demuxer2.default, remux: _passthroughRemuxer2.default }]

              // probe for content type
              for (var i in muxConfig) {
                var mux = muxConfig[i]
                var probe = mux.demux.probe
                if (probe(data)) {
                  var _remuxer = this.remuxer = new mux.remux(observer, config, typeSupported, this.vendor)
                  demuxer = new mux.demux(observer, _remuxer, config, typeSupported)
                  this.probe = probe
                  break
                }
              }
              if (!demuxer) {
                observer.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.FRAG_PARSING_ERROR, fatal: true, reason: 'no demux matching with content found' })
                return
              }
              this.demuxer = demuxer
            }
            var remuxer = this.remuxer

            if (discontinuity || trackSwitch) {
              demuxer.resetInitSegment(initSegment, audioCodec, videoCodec, duration)
              remuxer.resetInitSegment()
            }
            if (discontinuity) {
              demuxer.resetTimeStamp()
              remuxer.resetTimeStamp(defaultInitPTS)
            }
            if (typeof demuxer.setDecryptData === 'function') {
              demuxer.setDecryptData(decryptdata)
            }
            demuxer.append(data, timeOffset, contiguous, accurateTimeOffset)
          }
        }])

        return DemuxerInline
      }())

      exports.default = DemuxerInline
    }, { 18: 18, 20: 20, 27: 27, 29: 29, 30: 30, 32: 32, 42: 42, 43: 43 }],
    23: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _demuxerInline = _dereq_(22)

      var _demuxerInline2 = _interopRequireDefault(_demuxerInline)

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _logger = _dereq_(50)

      var _events3 = _dereq_(1)

      var _events4 = _interopRequireDefault(_events3)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      /* demuxer web worker.
 *  - listen to worker message, and trigger DemuxerInline upon reception of Fragments.
 *  - provides MP4 Boxes back to main thread using [transferable objects](https://developers.google.com/web/updates/2011/12/Transferable-Objects-Lightning-Fast) in order to minimize message passing overhead.
 */

      var DemuxerWorker = function DemuxerWorker (self) {
      // observer setup
        var observer = new _events4.default()
        observer.trigger = function trigger (event) {
          for (var _len = arguments.length, data = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
            data[_key - 1] = arguments[_key]
          }

          observer.emit.apply(observer, [event, event].concat(data))
        }

        observer.off = function off (event) {
          for (var _len2 = arguments.length, data = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
            data[_key2 - 1] = arguments[_key2]
          }

          observer.removeListener.apply(observer, [event].concat(data))
        }

        var forwardMessage = function forwardMessage (ev, data) {
          self.postMessage({ event: ev, data: data })
        }

        self.addEventListener('message', function (ev) {
          var data = ev.data
          // console.log('demuxer cmd:' + data.cmd);
          switch (data.cmd) {
            case 'init':
              var config = JSON.parse(data.config)
              self.demuxer = new _demuxerInline2.default(observer, data.typeSupported, config, data.vendor)
              try {
                (0, _logger.enableLogs)(config.debug === true)
              } catch (err) {
                console.warn('demuxerWorker: unable to enable logs')
              }
              // signal end of worker init
              forwardMessage('init', null)
              break
            case 'demux':
              self.demuxer.push(data.data, data.decryptdata, data.initSegment, data.audioCodec, data.videoCodec, data.timeOffset, data.discontinuity, data.trackSwitch, data.contiguous, data.duration, data.accurateTimeOffset, data.defaultInitPTS)
              break
            default:
              break
          }
        })

        // forward events to main thread
        observer.on(_events2.default.FRAG_DECRYPTED, forwardMessage)
        observer.on(_events2.default.FRAG_PARSING_INIT_SEGMENT, forwardMessage)
        observer.on(_events2.default.FRAG_PARSED, forwardMessage)
        observer.on(_events2.default.ERROR, forwardMessage)
        observer.on(_events2.default.FRAG_PARSING_METADATA, forwardMessage)
        observer.on(_events2.default.FRAG_PARSING_USERDATA, forwardMessage)
        observer.on(_events2.default.INIT_PTS_FOUND, forwardMessage)

        // special case for FRAG_PARSING_DATA: pass data1/data2 as transferable object (no copy)
        observer.on(_events2.default.FRAG_PARSING_DATA, function (ev, data) {
          var transferable = []
          var message = { event: ev, data: data }
          if (data.data1) {
            message.data1 = data.data1.buffer
            transferable.push(data.data1.buffer)
            delete data.data1
          }
          if (data.data2) {
            message.data2 = data.data2.buffer
            transferable.push(data.data2.buffer)
            delete data.data2
          }
          self.postMessage(message, transferable)
        })
      }

      exports.default = DemuxerWorker
    }, { 1: 1, 22: 22, 32: 32, 50: 50 }],
    24: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _demuxerInline = _dereq_(22)

      var _demuxerInline2 = _interopRequireDefault(_demuxerInline)

      var _demuxerWorker = _dereq_(23)

      var _demuxerWorker2 = _interopRequireDefault(_demuxerWorker)

      var _logger = _dereq_(50)

      var _errors = _dereq_(30)

      var _events3 = _dereq_(1)

      var _events4 = _interopRequireDefault(_events3)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      var Demuxer = (function () {
        function Demuxer (hls, id) {
          _classCallCheck(this, Demuxer)

          this.hls = hls
          this.id = id
          // observer setup
          var observer = this.observer = new _events4.default()
          var config = hls.config
          observer.trigger = function trigger (event) {
            for (var _len = arguments.length, data = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
              data[_key - 1] = arguments[_key]
            }

            observer.emit.apply(observer, [event, event].concat(data))
          }

          observer.off = function off (event) {
            for (var _len2 = arguments.length, data = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
              data[_key2 - 1] = arguments[_key2]
            }

            observer.removeListener.apply(observer, [event].concat(data))
          }

          var forwardMessage = function (ev, data) {
            data = data || {}
            data.frag = this.frag
            data.id = this.id
            hls.trigger(ev, data)
          }.bind(this)

          // forward events to main thread
          observer.on(_events2.default.FRAG_DECRYPTED, forwardMessage)
          observer.on(_events2.default.FRAG_PARSING_INIT_SEGMENT, forwardMessage)
          observer.on(_events2.default.FRAG_PARSING_DATA, forwardMessage)
          observer.on(_events2.default.FRAG_PARSED, forwardMessage)
          observer.on(_events2.default.ERROR, forwardMessage)
          observer.on(_events2.default.FRAG_PARSING_METADATA, forwardMessage)
          observer.on(_events2.default.FRAG_PARSING_USERDATA, forwardMessage)
          observer.on(_events2.default.INIT_PTS_FOUND, forwardMessage)

          var typeSupported = {
            mp4: MediaSource.isTypeSupported('video/mp4'),
            mpeg: MediaSource.isTypeSupported('audio/mpeg'),
            mp3: MediaSource.isTypeSupported('audio/mp4; codecs="mp3"')
          }
          // navigator.vendor is not always available in Web Worker
          // refer to https://developer.mozilla.org/en-US/docs/Web/API/WorkerGlobalScope/navigator
          var vendor = navigator.vendor
          if (config.enableWorker && typeof Worker !== 'undefined') {
            _logger.logger.log('demuxing in webworker')
            var w = void 0
            try {
              var work = _dereq_(3)
              w = this.w = work(_demuxerWorker2.default)
              this.onwmsg = this.onWorkerMessage.bind(this)
              w.addEventListener('message', this.onwmsg)
              w.onerror = function (event) {
                hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.OTHER_ERROR, details: _errors.ErrorDetails.INTERNAL_EXCEPTION, fatal: true, event: 'demuxerWorker', err: { message: event.message + ' (' + event.filename + ':' + event.lineno + ')' } })
              }
              w.postMessage({ cmd: 'init', typeSupported: typeSupported, vendor: vendor, id: id, config: JSON.stringify(config) })
            } catch (err) {
              _logger.logger.error('error while initializing DemuxerWorker, fallback on DemuxerInline')
              if (w) {
              // revoke the Object URL that was used to create demuxer worker, so as not to leak it
                URL.revokeObjectURL(w.objectURL)
              }
              this.demuxer = new _demuxerInline2.default(observer, typeSupported, config, vendor)
              this.w = undefined
            }
          } else {
            this.demuxer = new _demuxerInline2.default(observer, typeSupported, config, vendor)
          }
        }

        _createClass(Demuxer, [{
          key: 'destroy',
          value: function destroy () {
            var w = this.w
            if (w) {
              w.removeEventListener('message', this.onwmsg)
              w.terminate()
              this.w = null
            } else {
              var demuxer = this.demuxer
              if (demuxer) {
                demuxer.destroy()
                this.demuxer = null
              }
            }
            var observer = this.observer
            if (observer) {
              observer.removeAllListeners()
              this.observer = null
            }
          }
        }, {
          key: 'push',
          value: function push (data, initSegment, audioCodec, videoCodec, frag, duration, accurateTimeOffset, defaultInitPTS) {
            var w = this.w
            var timeOffset = !isNaN(frag.startDTS) ? frag.startDTS : frag.start
            var decryptdata = frag.decryptdata
            var lastFrag = this.frag
            var discontinuity = !(lastFrag && frag.cc === lastFrag.cc)
            var trackSwitch = !(lastFrag && frag.level === lastFrag.level)
            var nextSN = lastFrag && frag.sn === lastFrag.sn + 1
            var contiguous = !trackSwitch && nextSN
            if (discontinuity) {
              _logger.logger.log(this.id + ':discontinuity detected')
            }
            if (trackSwitch) {
              _logger.logger.log(this.id + ':switch detected')
            }
            this.frag = frag
            if (w) {
            // post fragment payload as transferable objects (no copy)
              w.postMessage({ cmd: 'demux', data: data, decryptdata: decryptdata, initSegment: initSegment, audioCodec: audioCodec, videoCodec: videoCodec, timeOffset: timeOffset, discontinuity: discontinuity, trackSwitch: trackSwitch, contiguous: contiguous, duration: duration, accurateTimeOffset: accurateTimeOffset, defaultInitPTS: defaultInitPTS }, [data])
            } else {
              var demuxer = this.demuxer
              if (demuxer) {
                demuxer.push(data, decryptdata, initSegment, audioCodec, videoCodec, timeOffset, discontinuity, trackSwitch, contiguous, duration, accurateTimeOffset, defaultInitPTS)
              }
            }
          }
        }, {
          key: 'onWorkerMessage',
          value: function onWorkerMessage (ev) {
            var data = ev.data
            var hls = this.hls
            // console.log('onWorkerMessage:' + data.event);
            switch (data.event) {
              case 'init':
              // revoke the Object URL that was used to create demuxer worker, so as not to leak it
                URL.revokeObjectURL(this.w.objectURL)
                break
              // special case for FRAG_PARSING_DATA: data1 and data2 are transferable objects
              case _events2.default.FRAG_PARSING_DATA:
                data.data.data1 = new Uint8Array(data.data1)
                if (data.data2) {
                  data.data.data2 = new Uint8Array(data.data2)
                }
              /* falls through */
              default:
                data.data = data.data || {}
                data.data.frag = this.frag
                data.data.id = this.id
                hls.trigger(data.event, data.data)
                break
            }
          }
        }])

        return Demuxer
      }())

      exports.default = Demuxer
    }, { 1: 1, 22: 22, 23: 23, 3: 3, 30: 30, 32: 32, 50: 50 }],
    25: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }()) /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * Parser for exponential Golomb codes, a variable-bitwidth number encoding scheme used by h264.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     */

      var _logger = _dereq_(50)

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      var ExpGolomb = (function () {
        function ExpGolomb (data) {
          _classCallCheck(this, ExpGolomb)

          this.data = data
          // the number of bytes left to examine in this.data
          this.bytesAvailable = data.byteLength
          // the current word being examined
          this.word = 0 // :uint
          // the number of bits left to examine in the current word
          this.bitsAvailable = 0 // :uint
        }

        // ():void

        _createClass(ExpGolomb, [{
          key: 'loadWord',
          value: function loadWord () {
            var data = this.data
            var bytesAvailable = this.bytesAvailable
            var position = data.byteLength - bytesAvailable
            var workingBytes = new Uint8Array(4)
            var availableBytes = Math.min(4, bytesAvailable)
            if (availableBytes === 0) {
              throw new Error('no bytes available')
            }
            workingBytes.set(data.subarray(position, position + availableBytes))
            this.word = new DataView(workingBytes.buffer).getUint32(0)
            // track the amount of this.data that has been processed
            this.bitsAvailable = availableBytes * 8
            this.bytesAvailable -= availableBytes
          }

          // (count:int):void

        }, {
          key: 'skipBits',
          value: function skipBits (count) {
            var skipBytes // :int
            if (this.bitsAvailable > count) {
              this.word <<= count
              this.bitsAvailable -= count
            } else {
              count -= this.bitsAvailable
              skipBytes = count >> 3
              count -= skipBytes >> 3
              this.bytesAvailable -= skipBytes
              this.loadWord()
              this.word <<= count
              this.bitsAvailable -= count
            }
          }

          // (size:int):uint

        }, {
          key: 'readBits',
          value: function readBits (size) {
            var bits = Math.min(this.bitsAvailable, size)
            // :uint
            var valu = this.word >>> 32 - bits // :uint
            if (size > 32) {
              _logger.logger.error('Cannot read more than 32 bits at a time')
            }
            this.bitsAvailable -= bits
            if (this.bitsAvailable > 0) {
              this.word <<= bits
            } else if (this.bytesAvailable > 0) {
              this.loadWord()
            }
            bits = size - bits
            if (bits > 0 && this.bitsAvailable) {
              return valu << bits | this.readBits(bits)
            } else {
              return valu
            }
          }

          // ():uint

        }, {
          key: 'skipLZ',
          value: function skipLZ () {
            var leadingZeroCount // :uint
            for (leadingZeroCount = 0; leadingZeroCount < this.bitsAvailable; ++leadingZeroCount) {
              if ((this.word & 0x80000000 >>> leadingZeroCount) !== 0) {
              // the first bit of working word is 1
                this.word <<= leadingZeroCount
                this.bitsAvailable -= leadingZeroCount
                return leadingZeroCount
              }
            }
            // we exhausted word and still have not found a 1
            this.loadWord()
            return leadingZeroCount + this.skipLZ()
          }

          // ():void

        }, {
          key: 'skipUEG',
          value: function skipUEG () {
            this.skipBits(1 + this.skipLZ())
          }

          // ():void

        }, {
          key: 'skipEG',
          value: function skipEG () {
            this.skipBits(1 + this.skipLZ())
          }

          // ():uint

        }, {
          key: 'readUEG',
          value: function readUEG () {
            var clz = this.skipLZ() // :uint
            return this.readBits(clz + 1) - 1
          }

          // ():int

        }, {
          key: 'readEG',
          value: function readEG () {
            var valu = this.readUEG() // :int
            if (0x01 & valu) {
            // the number is odd if the low order bit is set
              return 1 + valu >>> 1 // add 1 to make it even, and divide by 2
            } else {
              return -1 * (valu >>> 1) // divide by two then make it negative
            }
          }

          // Some convenience functions
          // :Boolean

        }, {
          key: 'readBoolean',
          value: function readBoolean () {
            return this.readBits(1) === 1
          }

          // ():int

        }, {
          key: 'readUByte',
          value: function readUByte () {
            return this.readBits(8)
          }

          // ():int

        }, {
          key: 'readUShort',
          value: function readUShort () {
            return this.readBits(16)
          }
          // ():int

        }, {
          key: 'readUInt',
          value: function readUInt () {
            return this.readBits(32)
          }

          /**
     * Advance the ExpGolomb decoder past a scaling list. The scaling
     * list is optionally transmitted as part of a sequence parameter
     * set and is not relevant to transmuxing.
     * @param count {number} the number of entries in this scaling list
     * @see Recommendation ITU-T H.264, Section 7.3.2.1.1.1
     */

        }, {
          key: 'skipScalingList',
          value: function skipScalingList (count) {
            var lastScale = 8
            var nextScale = 8
            var j
            var deltaScale
            for (j = 0; j < count; j++) {
              if (nextScale !== 0) {
                deltaScale = this.readEG()
                nextScale = (lastScale + deltaScale + 256) % 256
              }
              lastScale = nextScale === 0 ? lastScale : nextScale
            }
          }

          /**
     * Read a sequence parameter set and return some interesting video
     * properties. A sequence parameter set is the H264 metadata that
     * describes the properties of upcoming video frames.
     * @param data {Uint8Array} the bytes of a sequence parameter set
     * @return {object} an object with configuration parsed from the
     * sequence parameter set, including the dimensions of the
     * associated video frames.
     */

        }, {
          key: 'readSPS',
          value: function readSPS () {
            var frameCropLeftOffset = 0
            var frameCropRightOffset = 0
            var frameCropTopOffset = 0
            var frameCropBottomOffset = 0
            var profileIdc
            var profileCompat
            var levelIdc
            var numRefFramesInPicOrderCntCycle
            var picWidthInMbsMinus1
            var picHeightInMapUnitsMinus1
            var frameMbsOnlyFlag
            var scalingListCount
            var i
            var readUByte = this.readUByte.bind(this)
            var readBits = this.readBits.bind(this)
            var readUEG = this.readUEG.bind(this)
            var readBoolean = this.readBoolean.bind(this)
            var skipBits = this.skipBits.bind(this)
            var skipEG = this.skipEG.bind(this)
            var skipUEG = this.skipUEG.bind(this)
            var skipScalingList = this.skipScalingList.bind(this)

            readUByte()
            profileIdc = readUByte() // profile_idc
            profileCompat = readBits(5) // constraint_set[0-4]_flag, u(5)
            skipBits(3) // reserved_zero_3bits u(3),
            levelIdc = readUByte() // level_idc u(8)
            skipUEG() // seq_parameter_set_id
            // some profiles have more optional data we don't need
            if (profileIdc === 100 || profileIdc === 110 || profileIdc === 122 || profileIdc === 244 || profileIdc === 44 || profileIdc === 83 || profileIdc === 86 || profileIdc === 118 || profileIdc === 128) {
              var chromaFormatIdc = readUEG()
              if (chromaFormatIdc === 3) {
                skipBits(1) // separate_colour_plane_flag
              }
              skipUEG() // bit_depth_luma_minus8
              skipUEG() // bit_depth_chroma_minus8
              skipBits(1) // qpprime_y_zero_transform_bypass_flag
              if (readBoolean()) {
              // seq_scaling_matrix_present_flag
                scalingListCount = chromaFormatIdc !== 3 ? 8 : 12
                for (i = 0; i < scalingListCount; i++) {
                  if (readBoolean()) {
                  // seq_scaling_list_present_flag[ i ]
                    if (i < 6) {
                      skipScalingList(16)
                    } else {
                      skipScalingList(64)
                    }
                  }
                }
              }
            }
            skipUEG() // log2_max_frame_num_minus4
            var picOrderCntType = readUEG()
            if (picOrderCntType === 0) {
              readUEG() // log2_max_pic_order_cnt_lsb_minus4
            } else if (picOrderCntType === 1) {
              skipBits(1) // delta_pic_order_always_zero_flag
              skipEG() // offset_for_non_ref_pic
              skipEG() // offset_for_top_to_bottom_field
              numRefFramesInPicOrderCntCycle = readUEG()
              for (i = 0; i < numRefFramesInPicOrderCntCycle; i++) {
                skipEG() // offset_for_ref_frame[ i ]
              }
            }
            skipUEG() // max_num_ref_frames
            skipBits(1) // gaps_in_frame_num_value_allowed_flag
            picWidthInMbsMinus1 = readUEG()
            picHeightInMapUnitsMinus1 = readUEG()
            frameMbsOnlyFlag = readBits(1)
            if (frameMbsOnlyFlag === 0) {
              skipBits(1) // mb_adaptive_frame_field_flag
            }
            skipBits(1) // direct_8x8_inference_flag
            if (readBoolean()) {
            // frame_cropping_flag
              frameCropLeftOffset = readUEG()
              frameCropRightOffset = readUEG()
              frameCropTopOffset = readUEG()
              frameCropBottomOffset = readUEG()
            }
            var pixelRatio = [1, 1]
            if (readBoolean()) {
            // vui_parameters_present_flag
              if (readBoolean()) {
              // aspect_ratio_info_present_flag
                var aspectRatioIdc = readUByte()
                switch (aspectRatioIdc) {
                  case 1:
                    pixelRatio = [1, 1]; break
                  case 2:
                    pixelRatio = [12, 11]; break
                  case 3:
                    pixelRatio = [10, 11]; break
                  case 4:
                    pixelRatio = [16, 11]; break
                  case 5:
                    pixelRatio = [40, 33]; break
                  case 6:
                    pixelRatio = [24, 11]; break
                  case 7:
                    pixelRatio = [20, 11]; break
                  case 8:
                    pixelRatio = [32, 11]; break
                  case 9:
                    pixelRatio = [80, 33]; break
                  case 10:
                    pixelRatio = [18, 11]; break
                  case 11:
                    pixelRatio = [15, 11]; break
                  case 12:
                    pixelRatio = [64, 33]; break
                  case 13:
                    pixelRatio = [160, 99]; break
                  case 14:
                    pixelRatio = [4, 3]; break
                  case 15:
                    pixelRatio = [3, 2]; break
                  case 16:
                    pixelRatio = [2, 1]; break
                  case 255:
                  {
                    pixelRatio = [readUByte() << 8 | readUByte(), readUByte() << 8 | readUByte()]
                    break
                  }
                }
              }
            }
            return {
              width: Math.ceil((picWidthInMbsMinus1 + 1) * 16 - frameCropLeftOffset * 2 - frameCropRightOffset * 2),
              height: (2 - frameMbsOnlyFlag) * (picHeightInMapUnitsMinus1 + 1) * 16 - (frameMbsOnlyFlag ? 2 : 4) * (frameCropTopOffset + frameCropBottomOffset),
              pixelRatio: pixelRatio
            }
          }
        }, {
          key: 'readSliceType',
          value: function readSliceType () {
          // skip NALu type
            this.readUByte()
            // discard first_mb_in_slice
            this.readUEG()
            // return slice_type
            return this.readUEG()
          }
        }])

        return ExpGolomb
      }())

      exports.default = ExpGolomb
    }, { 50: 50 }],
    26: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }()) /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * ID3 parser
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      */

      var _logger = _dereq_(50)

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      // import Hex from '../utils/hex';

      var ID3 = (function () {
        function ID3 (data) {
          _classCallCheck(this, ID3)

          this._hasTimeStamp = false
          var offset = 0
          var byte1
          var byte2
          var byte3
          var byte4
          var tagSize
          var endPos
          var header
          var len
          do {
            header = this.readUTF(data, offset, 3)
            offset += 3
            // first check for ID3 header
            if (header === 'ID3') {
            // skip 24 bits
              offset += 3
              // retrieve tag(s) length
              byte1 = data[offset++] & 0x7f
              byte2 = data[offset++] & 0x7f
              byte3 = data[offset++] & 0x7f
              byte4 = data[offset++] & 0x7f
              tagSize = (byte1 << 21) + (byte2 << 14) + (byte3 << 7) + byte4
              endPos = offset + tagSize
              // logger.log(`ID3 tag found, size/end: ${tagSize}/${endPos}`);

              // read ID3 tags
              this._parseID3Frames(data, offset, endPos)
              offset = endPos
            } else if (header === '3DI') {
            // http://id3.org/id3v2.4.0-structure chapter 3.4.   ID3v2 footer
              offset += 7
              _logger.logger.log('3DI footer found, end: ' + offset)
            } else {
              offset -= 3
              len = offset
              if (len) {
              // logger.log(`ID3 len: ${len}`);
                if (!this.hasTimeStamp) {
                  _logger.logger.warn('ID3 tag found, but no timestamp')
                }
                this._length = len
                this._payload = data.subarray(0, len)
              }
              return
            }
          } while (true)
        }

        _createClass(ID3, [{
          key: 'readUTF',
          value: function readUTF (data, start, len) {
            var result = ''
            var offset = start
            var end = start + len
            do {
              result += String.fromCharCode(data[offset++])
            } while (offset < end)
            return result
          }
        }, {
          key: '_parseID3Frames',
          value: function _parseID3Frames (data, offset, endPos) {
            var tagId, tagLen, tagStart, tagFlags, timestamp
            while (offset + 8 <= endPos) {
              tagId = this.readUTF(data, offset, 4)
              offset += 4

              tagLen = data[offset++] << 24 + data[offset++] << 16 + data[offset++] << 8 + data[offset++]

              tagFlags = data[offset++] << 8 + data[offset++]

              tagStart = offset
              // logger.log("ID3 tag id:" + tagId);
              switch (tagId) {
                case 'PRIV':
                // logger.log('parse frame:' + Hex.hexDump(data.subarray(offset,endPos)));
                // owner should be "com.apple.streaming.transportStreamTimestamp"
                  if (this.readUTF(data, offset, 44) === 'com.apple.streaming.transportStreamTimestamp') {
                    offset += 44
                    // smelling even better ! we found the right descriptor
                    // skip null character (string end) + 3 first bytes
                    offset += 4

                    // timestamp is 33 bit expressed as a big-endian eight-octet number, with the upper 31 bits set to zero.
                    var pts33Bit = data[offset++] & 0x1
                    this._hasTimeStamp = true

                    timestamp = ((data[offset++] << 23) + (data[offset++] << 15) + (data[offset++] << 7) + data[offset++]) / 45

                    if (pts33Bit) {
                      timestamp += 47721858.84 // 2^32 / 90
                    }
                    timestamp = Math.round(timestamp)
                    _logger.logger.trace('ID3 timestamp found: ' + timestamp)
                    this._timeStamp = timestamp
                  }
                  break
                default:
                  break
              }
            }
          }
        }, {
          key: 'hasTimeStamp',
          get: function get () {
            return this._hasTimeStamp
          }
        }, {
          key: 'timeStamp',
          get: function get () {
            return this._timeStamp
          }
        }, {
          key: 'length',
          get: function get () {
            return this._length
          }
        }, {
          key: 'payload',
          get: function get () {
            return this._payload
          }
        }])

        return ID3
      }())

      exports.default = ID3
    }, { 50: 50 }],
    27: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }()) /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * MP4 demuxer
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      */
      // import {logger} from '../utils/logger';

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      var MP4Demuxer = (function () {
        function MP4Demuxer (observer, remuxer) {
          _classCallCheck(this, MP4Demuxer)

          this.observer = observer
          this.remuxer = remuxer
        }

        _createClass(MP4Demuxer, [{
          key: 'resetTimeStamp',
          value: function resetTimeStamp () {}
        }, {
          key: 'resetInitSegment',
          value: function resetInitSegment (initSegment, audioCodec, videoCodec, duration) {
          // jshint unused:false
            var initData = this.initData = MP4Demuxer.parseInitSegment(initSegment)
            var tracks = {}
            if (initData.audio) {
              tracks.audio = { container: 'audio/mp4', codec: audioCodec, initSegment: initSegment }
            }
            if (initData.video) {
              tracks.video = { container: 'video/mp4', codec: videoCodec, initSegment: initSegment }
            }
            this.observer.trigger(_events2.default.FRAG_PARSING_INIT_SEGMENT, { tracks: tracks })
          }
        }, {
          key: 'append',

          // feed incoming data to the front of the parsing pipeline
          value: function append (data, timeOffset, contiguous, accurateTimeOffset) {
            var initData = this.initData
            var startDTS = MP4Demuxer.startDTS(initData, data)
            this.remuxer.remux(initData.audio, initData.video, null, null, startDTS, contiguous, accurateTimeOffset, data)
          }
        }, {
          key: 'destroy',
          value: function destroy () {}
        }], [{
          key: 'probe',
          value: function probe (data) {
            if (data.length >= 8) {
              var dataType = MP4Demuxer.bin2str(data.subarray(4, 8))
              return ['moof', 'ftyp', 'styp'].indexOf(dataType) >= 0
            }
            return false
          }
        }, {
          key: 'bin2str',
          value: function bin2str (buffer) {
            return String.fromCharCode.apply(null, buffer)
          }

          // Find the data for a box specified by its path

        }, {
          key: 'findBox',
          value: function findBox (data, path) {
            var results = []
            var i
            var size
            var type
            var end
            var subresults

            if (!path.length) {
            // short-circuit the search for empty paths
              return null
            }

            for (i = 0; i < data.byteLength;) {
              size = data[i] << 24
              size |= data[i + 1] << 16
              size |= data[i + 2] << 8
              size |= data[i + 3]

              type = MP4Demuxer.bin2str(data.subarray(i + 4, i + 8))

              end = size > 1 ? i + size : data.byteLength

              if (type === path[0]) {
                if (path.length === 1) {
                // this is the end of the path and we've found the box we were
                // looking for
                  results.push(data.subarray(i + 8, end))
                } else {
                // recursively search for the next box along the path
                  subresults = MP4Demuxer.findBox(data.subarray(i + 8, end), path.slice(1))
                  if (subresults.length) {
                    results = results.concat(subresults)
                  }
                }
              }
              i = end
            }

            // we've finished searching all of data
            return results
          }

          /**
     * Parses an MP4 initialization segment and extracts stream type and
     * timescale values for any declared tracks. Timescale values indicate the
     * number of clock ticks per second to assume for time-based values
     * elsewhere in the MP4.
     *
     * To determine the start time of an MP4, you need two pieces of
     * information: the timescale unit and the earliest base media decode
     * time. Multiple timescales can be specified within an MP4 but the
     * base media decode time is always expressed in the timescale from
     * the media header box for the track:
     * ```
     * moov > trak > mdia > mdhd.timescale
     * moov > trak > mdia > hdlr
     * ```
     * @param init {Uint8Array} the bytes of the init segment
     * @return {object} a hash of track type to timescale values or null if
     * the init segment is malformed.
     */

        }, {
          key: 'parseInitSegment',
          value: function parseInitSegment (initSegment) {
            var result = []
            var traks = MP4Demuxer.findBox(initSegment, ['moov', 'trak'])

            traks.forEach(function (trak) {
              var tkhd = MP4Demuxer.findBox(trak, ['tkhd'])[0]
              if (tkhd) {
                var version = tkhd[0]
                var index = version === 0 ? 12 : 20
                var trackId = tkhd[index] << 24 | tkhd[index + 1] << 16 | tkhd[index + 2] << 8 | tkhd[index + 3]

                trackId = trackId < 0 ? 4294967296 + trackId : trackId

                var mdhd = MP4Demuxer.findBox(trak, ['mdia', 'mdhd'])[0]
                if (mdhd) {
                  version = mdhd[0]
                  index = version === 0 ? 12 : 20
                  var timescale = mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]

                  var hdlr = MP4Demuxer.findBox(trak, ['mdia', 'hdlr'])[0]
                  if (hdlr) {
                    var hdlrType = MP4Demuxer.bin2str(hdlr.subarray(8, 12))
                    var type = { soun: 'audio', vide: 'video' }[hdlrType]
                    if (type) {
                      result[trackId] = { timescale: timescale, type: type }
                      result[type] = { timescale: timescale, id: trackId }
                    }
                  }
                }
              }
            })
            return result
          }

          /**
     * Determine the base media decode start time, in seconds, for an MP4
     * fragment. If multiple fragments are specified, the earliest time is
     * returned.
     *
     * The base media decode time can be parsed from track fragment
     * metadata:
     * ```
     * moof > traf > tfdt.baseMediaDecodeTime
     * ```
     * It requires the timescale value from the mdhd to interpret.
     *
     * @param timescale {object} a hash of track ids to timescale values.
     * @return {number} the earliest base media decode start time for the
     * fragment, in seconds
     */

        }, {
          key: 'startDTS',
          value: function startDTS (initData, fragment) {
            var trafs, baseTimes, result

            // we need info from two childrend of each track fragment box
            trafs = MP4Demuxer.findBox(fragment, ['moof', 'traf'])

            // determine the start times for each track
            baseTimes = [].concat.apply([], trafs.map(function (traf) {
              return MP4Demuxer.findBox(traf, ['tfhd']).map(function (tfhd) {
                var id, scale, baseTime

                // get the track id from the tfhd
                id = tfhd[4] << 24 | tfhd[5] << 16 | tfhd[6] << 8 | tfhd[7]
                // assume a 90kHz clock if no timescale was specified
                scale = initData[id].timescale || 90e3

                // get the base media decode time from the tfdt
                baseTime = MP4Demuxer.findBox(traf, ['tfdt']).map(function (tfdt) {
                  var version, result

                  version = tfdt[0]
                  result = tfdt[4] << 24 | tfdt[5] << 16 | tfdt[6] << 8 | tfdt[7]
                  if (version === 1) {
                    result *= Math.pow(2, 32)
                    result += tfdt[8] << 24 | tfdt[9] << 16 | tfdt[10] << 8 | tfdt[11]
                  }
                  return result
                })[0]
                baseTime = baseTime || Infinity

                // convert base time to seconds
                return baseTime / scale
              })
            }))

            // return the minimum
            result = Math.min.apply(null, baseTimes)
            return isFinite(result) ? result : 0
          }
        }])

        return MP4Demuxer
      }())

      exports.default = MP4Demuxer
    }, { 32: 32 }],
    28: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }()) /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * SAMPLE-AES decrypter
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     */

      var _decrypter = _dereq_(18)

      var _decrypter2 = _interopRequireDefault(_decrypter)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      var SampleAesDecrypter = (function () {
        function SampleAesDecrypter (observer, config, decryptdata, discardEPB) {
          _classCallCheck(this, SampleAesDecrypter)

          this.decryptdata = decryptdata
          this.discardEPB = discardEPB
          this.decrypter = new _decrypter2.default(observer, config)
        }

        _createClass(SampleAesDecrypter, [{
          key: 'decryptBuffer',
          value: function decryptBuffer (encryptedData, callback) {
            this.decrypter.decrypt(encryptedData, this.decryptdata.key.buffer, this.decryptdata.iv.buffer, callback)
          }

          // AAC - encrypt all full 16 bytes blocks starting from offset 16

        }, {
          key: 'decryptAacSample',
          value: function decryptAacSample (samples, sampleIndex, callback, sync) {
            var curUnit = samples[sampleIndex].unit
            var encryptedData = curUnit.subarray(16, curUnit.length - curUnit.length % 16)
            var encryptedBuffer = encryptedData.buffer.slice(encryptedData.byteOffset, encryptedData.byteOffset + encryptedData.length)

            var localthis = this
            this.decryptBuffer(encryptedBuffer, function (decryptedData) {
              decryptedData = new Uint8Array(decryptedData)
              curUnit.set(decryptedData, 16)

              if (!sync) {
                localthis.decryptAacSamples(samples, sampleIndex + 1, callback)
              }
            })
          }
        }, {
          key: 'decryptAacSamples',
          value: function decryptAacSamples (samples, sampleIndex, callback) {
            for (;; sampleIndex++) {
              if (sampleIndex >= samples.length) {
                callback()
                return
              }

              if (samples[sampleIndex].unit.length < 32) {
                continue
              }

              var sync = this.decrypter.isSync()

              this.decryptAacSample(samples, sampleIndex, callback, sync)

              if (!sync) {
                return
              }
            }
          }

          // AVC - encrypt one 16 bytes block out of ten, starting from offset 32

        }, {
          key: 'getAvcEncryptedData',
          value: function getAvcEncryptedData (decodedData) {
            var encryptedDataLen = Math.floor((decodedData.length - 48) / 160) * 16 + 16
            var encryptedData = new Int8Array(encryptedDataLen)
            var outputPos = 0
            for (var inputPos = 32; inputPos <= decodedData.length - 16; inputPos += 160, outputPos += 16) {
              encryptedData.set(decodedData.subarray(inputPos, inputPos + 16), outputPos)
            }
            return encryptedData
          }
        }, {
          key: 'getAvcDecryptedUnit',
          value: function getAvcDecryptedUnit (decodedData, decryptedData) {
            decryptedData = new Uint8Array(decryptedData)
            var inputPos = 0
            for (var outputPos = 32; outputPos <= decodedData.length - 16; outputPos += 160, inputPos += 16) {
              decodedData.set(decryptedData.subarray(inputPos, inputPos + 16), outputPos)
            }
            return decodedData
          }
        }, {
          key: 'decryptAvcSample',
          value: function decryptAvcSample (samples, sampleIndex, unitIndex, callback, curUnit, sync) {
            var decodedData = this.discardEPB(curUnit.data)
            var encryptedData = this.getAvcEncryptedData(decodedData)
            var localthis = this

            this.decryptBuffer(encryptedData.buffer, function (decryptedData) {
              curUnit.data = localthis.getAvcDecryptedUnit(decodedData, decryptedData)

              if (!sync) {
                localthis.decryptAvcSamples(samples, sampleIndex, unitIndex + 1, callback)
              }
            })
          }
        }, {
          key: 'decryptAvcSamples',
          value: function decryptAvcSamples (samples, sampleIndex, unitIndex, callback) {
            for (;; sampleIndex++, unitIndex = 0) {
              if (sampleIndex >= samples.length) {
                callback()
                return
              }

              var curUnits = samples[sampleIndex].units
              for (;; unitIndex++) {
                if (unitIndex >= curUnits.length) {
                  break
                }

                var curUnit = curUnits[unitIndex]
                if (curUnit.length <= 48 || curUnit.type !== 1 && curUnit.type !== 5) {
                  continue
                }

                var sync = this.decrypter.isSync()

                this.decryptAvcSample(samples, sampleIndex, unitIndex, callback, curUnit, sync)

                if (!sync) {
                  return
                }
              }
            }
          }
        }])

        return SampleAesDecrypter
      }())

      exports.default = SampleAesDecrypter
    }, { 18: 18 }],
    29: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }()) /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * highly optimized TS demuxer:
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * parse PAT, PMT
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * extract PES packet from audio and video PIDs
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * extract AVC/H264 NAL units and AAC/ADTS samples from PES packet
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * trigger the remuxer upon parsing completion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * it also tries to workaround as best as it can audio codec switch (HE-AAC to AAC and vice versa), without having to restart the MediaSource.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * it also controls the remuxing process :
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * upon discontinuity or level switch detection, it will also notifies the remuxer so that it can reset its state.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     */

      // import Hex from '../utils/hex';

      var _adts = _dereq_(21)

      var _adts2 = _interopRequireDefault(_adts)

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _expGolomb = _dereq_(25)

      var _expGolomb2 = _interopRequireDefault(_expGolomb)

      var _sampleAes = _dereq_(28)

      var _sampleAes2 = _interopRequireDefault(_sampleAes)

      var _logger = _dereq_(50)

      var _errors = _dereq_(30)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      var TSDemuxer = (function () {
        function TSDemuxer (observer, remuxer, config, typeSupported) {
          _classCallCheck(this, TSDemuxer)

          this.observer = observer
          this.config = config
          this.typeSupported = typeSupported
          this.remuxer = remuxer
          this.sampleAes = null
        }

        _createClass(TSDemuxer, [{
          key: 'setDecryptData',
          value: function setDecryptData (decryptdata) {
            if (decryptdata != null && decryptdata.key != null && decryptdata.method === 'SAMPLE-AES') {
              this.sampleAes = new _sampleAes2.default(this.observer, this.config, decryptdata, this.discardEPB)
            } else {
              this.sampleAes = null
            }
          }
        }, {
          key: 'resetInitSegment',
          value: function resetInitSegment (initSegment, audioCodec, videoCodec, duration) {
            this.pmtParsed = false
            this._pmtId = -1
            this._avcTrack = { container: 'video/mp2t', type: 'video', id: -1, inputTimeScale: 90000, sequenceNumber: 0, samples: [], len: 0, dropped: 0 }
            this._audioTrack = { container: 'video/mp2t', type: 'audio', id: -1, inputTimeScale: 90000, sequenceNumber: 0, samples: [], len: 0, isAAC: true }
            this._id3Track = { type: 'id3', id: -1, inputTimeScale: 90000, sequenceNumber: 0, samples: [], len: 0 }
            this._txtTrack = { type: 'text', id: -1, inputTimeScale: 90000, sequenceNumber: 0, samples: [], len: 0 }
            // flush any partial content
            this.aacOverFlow = null
            this.aacLastPTS = null
            this.avcSample = null
            this.audioCodec = audioCodec
            this.videoCodec = videoCodec
            this._duration = duration
          }
        }, {
          key: 'resetTimeStamp',
          value: function resetTimeStamp () {}

          // feed incoming data to the front of the parsing pipeline

        }, {
          key: 'append',
          value: function append (data, timeOffset, contiguous, accurateTimeOffset) {
            var start
            var len = data.length
            var stt
            var pid
            var atf
            var offset
            var pes
            var unknownPIDs = false
            this.contiguous = contiguous
            var pmtParsed = this.pmtParsed
            var avcTrack = this._avcTrack
            var audioTrack = this._audioTrack
            var id3Track = this._id3Track
            var avcId = avcTrack.id
            var audioId = audioTrack.id
            var id3Id = id3Track.id
            var pmtId = this._pmtId
            var avcData = avcTrack.pesData
            var audioData = audioTrack.pesData
            var id3Data = id3Track.pesData
            var parsePAT = this._parsePAT
            var parsePMT = this._parsePMT
            var parsePES = this._parsePES
            var parseAVCPES = this._parseAVCPES.bind(this)
            var parseAACPES = this._parseAACPES.bind(this)
            var parseMPEGPES = this._parseMPEGPES.bind(this)
            var parseID3PES = this._parseID3PES.bind(this)

            // don't parse last TS packet if incomplete
            len -= len % 188
            // loop through TS packets
            for (start = 0; start < len; start += 188) {
              if (data[start] === 0x47) {
                stt = !!(data[start + 1] & 0x40)
                // pid is a 13-bit field starting at the last bit of TS[1]
                pid = ((data[start + 1] & 0x1f) << 8) + data[start + 2]
                atf = (data[start + 3] & 0x30) >> 4
                // if an adaption field is present, its length is specified by the fifth byte of the TS packet header.
                if (atf > 1) {
                  offset = start + 5 + data[start + 4]
                  // continue if there is only adaptation field
                  if (offset === start + 188) {
                    continue
                  }
                } else {
                  offset = start + 4
                }
                switch (pid) {
                  case avcId:
                    if (stt) {
                      if (avcData && (pes = parsePES(avcData))) {
                        parseAVCPES(pes, false)
                      }
                      avcData = { data: [], size: 0 }
                    }
                    if (avcData) {
                      avcData.data.push(data.subarray(offset, start + 188))
                      avcData.size += start + 188 - offset
                    }
                    break
                  case audioId:
                    if (stt) {
                      if (audioData && (pes = parsePES(audioData))) {
                        if (audioTrack.isAAC) {
                          parseAACPES(pes)
                        } else {
                          parseMPEGPES(pes)
                        }
                      }
                      audioData = { data: [], size: 0 }
                    }
                    if (audioData) {
                      audioData.data.push(data.subarray(offset, start + 188))
                      audioData.size += start + 188 - offset
                    }
                    break
                  case id3Id:
                    if (stt) {
                      if (id3Data && (pes = parsePES(id3Data))) {
                        parseID3PES(pes)
                      }
                      id3Data = { data: [], size: 0 }
                    }
                    if (id3Data) {
                      id3Data.data.push(data.subarray(offset, start + 188))
                      id3Data.size += start + 188 - offset
                    }
                    break
                  case 0:
                    if (stt) {
                      offset += data[offset] + 1
                    }
                    pmtId = this._pmtId = parsePAT(data, offset)
                    break
                  case pmtId:
                    if (stt) {
                      offset += data[offset] + 1
                    }
                    var parsedPIDs = parsePMT(data, offset, this.typeSupported.mpeg === true || this.typeSupported.mp3 === true, this.sampleAes != null)

                    // only update track id if track PID found while parsing PMT
                    // this is to avoid resetting the PID to -1 in case
                    // track PID transiently disappears from the stream
                    // this could happen in case of transient missing audio samples for example
                    avcId = parsedPIDs.avc
                    if (avcId > 0) {
                      avcTrack.id = avcId
                    }
                    audioId = parsedPIDs.audio
                    if (audioId > 0) {
                      audioTrack.id = audioId
                      audioTrack.isAAC = parsedPIDs.isAAC
                    }
                    id3Id = parsedPIDs.id3
                    if (id3Id > 0) {
                      id3Track.id = id3Id
                    }
                    if (unknownPIDs && !pmtParsed) {
                      _logger.logger.log('reparse from beginning')
                      unknownPIDs = false
                      // we set it to -188, the += 188 in the for loop will reset start to 0
                      start = -188
                    }
                    pmtParsed = this.pmtParsed = true
                    break
                  case 17:
                  case 0x1fff:
                    break
                  default:
                    unknownPIDs = true
                    break
                }
              } else {
                this.observer.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.FRAG_PARSING_ERROR, fatal: false, reason: 'TS packet did not start with 0x47' })
              }
            }
            // try to parse last PES packets
            if (avcData && (pes = parsePES(avcData))) {
              parseAVCPES(pes, true)
              avcTrack.pesData = null
            } else {
            // either avcData null or PES truncated, keep it for next frag parsing
              avcTrack.pesData = avcData
            }

            if (audioData && (pes = parsePES(audioData))) {
              if (audioTrack.isAAC) {
                parseAACPES(pes)
              } else {
                parseMPEGPES(pes)
              }
              audioTrack.pesData = null
            } else {
              if (audioData && audioData.size) {
                _logger.logger.log('last AAC PES packet truncated,might overlap between fragments')
              }
              // either audioData null or PES truncated, keep it for next frag parsing
              audioTrack.pesData = audioData
            }

            if (id3Data && (pes = parsePES(id3Data))) {
              parseID3PES(pes)
              id3Track.pesData = null
            } else {
            // either id3Data null or PES truncated, keep it for next frag parsing
              id3Track.pesData = id3Data
            }

            if (this.sampleAes == null) {
              this.remuxer.remux(audioTrack, avcTrack, id3Track, this._txtTrack, timeOffset, contiguous, accurateTimeOffset)
            } else {
              this.decryptAndRemux(audioTrack, avcTrack, id3Track, this._txtTrack, timeOffset, contiguous, accurateTimeOffset)
            }
          }
        }, {
          key: 'decryptAndRemux',
          value: function decryptAndRemux (audioTrack, videoTrack, id3Track, textTrack, timeOffset, contiguous, accurateTimeOffset) {
            if (audioTrack.samples && audioTrack.isAAC) {
              var localthis = this
              this.sampleAes.decryptAacSamples(audioTrack.samples, 0, function () {
                localthis.decryptAndRemuxAvc(audioTrack, videoTrack, id3Track, textTrack, timeOffset, contiguous, accurateTimeOffset)
              })
            } else {
              this.decryptAndRemuxAvc(audioTrack, videoTrack, id3Track, textTrack, timeOffset, contiguous, accurateTimeOffset)
            }
          }
        }, {
          key: 'decryptAndRemuxAvc',
          value: function decryptAndRemuxAvc (audioTrack, videoTrack, id3Track, textTrack, timeOffset, contiguous, accurateTimeOffset) {
            if (videoTrack.samples) {
              var localthis = this
              this.sampleAes.decryptAvcSamples(videoTrack.samples, 0, 0, function () {
                localthis.remuxer.remux(audioTrack, videoTrack, id3Track, textTrack, timeOffset, contiguous, accurateTimeOffset)
              })
            } else {
              this.remuxer.remux(audioTrack, videoTrack, id3Track, textTrack, timeOffset, contiguous, accurateTimeOffset)
            }
          }
        }, {
          key: 'destroy',
          value: function destroy () {
            this._initPTS = this._initDTS = undefined
            this._duration = 0
          }
        }, {
          key: '_parsePAT',
          value: function _parsePAT (data, offset) {
          // skip the PSI header and parse the first PMT entry
            return (data[offset + 10] & 0x1F) << 8 | data[offset + 11]
            // logger.log('PMT PID:'  + this._pmtId);
          }
        }, {
          key: '_parsePMT',
          value: function _parsePMT (data, offset, mpegSupported, isSampleAes) {
            var sectionLength
            var tableEnd
            var programInfoLength
            var pid
            var result = { audio: -1, avc: -1, id3: -1, isAAC: true }
            sectionLength = (data[offset + 1] & 0x0f) << 8 | data[offset + 2]
            tableEnd = offset + 3 + sectionLength - 4
            // to determine where the table is, we have to figure out how
            // long the program info descriptors are
            programInfoLength = (data[offset + 10] & 0x0f) << 8 | data[offset + 11]
            // advance the offset to the first entry in the mapping table
            offset += 12 + programInfoLength
            while (offset < tableEnd) {
              pid = (data[offset + 1] & 0x1F) << 8 | data[offset + 2]
              switch (data[offset]) {
                case 0xcf:
                // SAMPLE-AES AAC
                  if (!isSampleAes) {
                    _logger.logger.log('unkown stream type:' + data[offset])
                    break
                  }
                  /* falls through */

                // ISO/IEC 13818-7 ADTS AAC (MPEG-2 lower bit-rate audio)
                case 0x0f:
                // logger.log('AAC PID:'  + pid);
                  if (result.audio === -1) {
                    result.audio = pid
                  }
                  break

                // Packetized metadata (ID3)
                case 0x15:
                // logger.log('ID3 PID:'  + pid);
                  if (result.id3 === -1) {
                    result.id3 = pid
                  }
                  break

                case 0xdb:
                // SAMPLE-AES AVC
                  if (!isSampleAes) {
                    _logger.logger.log('unkown stream type:' + data[offset])
                    break
                  }
                  /* falls through */

                // ITU-T Rec. H.264 and ISO/IEC 14496-10 (lower bit-rate video)
                case 0x1b:
                // logger.log('AVC PID:'  + pid);
                  if (result.avc === -1) {
                    result.avc = pid
                  }
                  break

                // ISO/IEC 11172-3 (MPEG-1 audio)
                // or ISO/IEC 13818-3 (MPEG-2 halved sample rate audio)
                case 0x03:
                case 0x04:
                // logger.log('MPEG PID:'  + pid);
                  if (!mpegSupported) {
                    _logger.logger.log('MPEG audio found, not supported in this browser for now')
                  } else if (result.audio === -1) {
                    result.audio = pid
                    result.isAAC = false
                  }
                  break

                case 0x24:
                  _logger.logger.warn('HEVC stream type found, not supported for now')
                  break

                default:
                  _logger.logger.log('unkown stream type:' + data[offset])
                  break
              }
              // move to the next table entry
              // skip past the elementary stream descriptors, if present
              offset += ((data[offset + 3] & 0x0F) << 8 | data[offset + 4]) + 5
            }
            return result
          }
        }, {
          key: '_parsePES',
          value: function _parsePES (stream) {
            var i = 0
            var frag
            var pesFlags
            var pesPrefix
            var pesLen
            var pesHdrLen
            var pesData
            var pesPts
            var pesDts
            var payloadStartOffset
            var data = stream.data
            // safety check
            if (!stream || stream.size === 0) {
              return null
            }

            // we might need up to 19 bytes to read PES header
            // if first chunk of data is less than 19 bytes, let's merge it with following ones until we get 19 bytes
            // usually only one merge is needed (and this is rare ...)
            while (data[0].length < 19 && data.length > 1) {
              var newData = new Uint8Array(data[0].length + data[1].length)
              newData.set(data[0])
              newData.set(data[1], data[0].length)
              data[0] = newData
              data.splice(1, 1)
            }
            // retrieve PTS/DTS from first fragment
            frag = data[0]
            pesPrefix = (frag[0] << 16) + (frag[1] << 8) + frag[2]
            if (pesPrefix === 1) {
              pesLen = (frag[4] << 8) + frag[5]
              // if PES parsed length is not zero and greater than total received length, stop parsing. PES might be truncated
              // minus 6 : PES header size
              if (pesLen && pesLen > stream.size - 6) {
                return null
              }
              pesFlags = frag[7]
              if (pesFlags & 0xC0) {
              /* PES header described here : http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
              as PTS / DTS is 33 bit we cannot use bitwise operator in JS,
              as Bitwise operators treat their operands as a sequence of 32 bits */
                pesPts = (frag[9] & 0x0E) * 536870912 + // 1 << 29
          (frag[10] & 0xFF) * 4194304 + // 1 << 22
          (frag[11] & 0xFE) * 16384 + // 1 << 14
          (frag[12] & 0xFF) * 128 + // 1 << 7
          (frag[13] & 0xFE) / 2
          // check if greater than 2^32 -1
                if (pesPts > 4294967295) {
                // decrement 2^33
                  pesPts -= 8589934592
                }
                if (pesFlags & 0x40) {
                  pesDts = (frag[14] & 0x0E) * 536870912 + // 1 << 29
            (frag[15] & 0xFF) * 4194304 + // 1 << 22
            (frag[16] & 0xFE) * 16384 + // 1 << 14
            (frag[17] & 0xFF) * 128 + // 1 << 7
            (frag[18] & 0xFE) / 2
            // check if greater than 2^32 -1
                  if (pesDts > 4294967295) {
                  // decrement 2^33
                    pesDts -= 8589934592
                  }
                  if (pesPts - pesDts > 60 * 90000) {
                    _logger.logger.warn(Math.round((pesPts - pesDts) / 90000) + 's delta between PTS and DTS, align them')
                    pesPts = pesDts
                  }
                } else {
                  pesDts = pesPts
                }
              }
              pesHdrLen = frag[8]
              // 9 bytes : 6 bytes for PES header + 3 bytes for PES extension
              payloadStartOffset = pesHdrLen + 9

              stream.size -= payloadStartOffset
              // reassemble PES packet
              pesData = new Uint8Array(stream.size)
              for (var j = 0, dataLen = data.length; j < dataLen; j++) {
                frag = data[j]
                var len = frag.byteLength
                if (payloadStartOffset) {
                  if (payloadStartOffset > len) {
                  // trim full frag if PES header bigger than frag
                    payloadStartOffset -= len
                    continue
                  } else {
                  // trim partial frag if PES header smaller than frag
                    frag = frag.subarray(payloadStartOffset)
                    len -= payloadStartOffset
                    payloadStartOffset = 0
                  }
                }
                pesData.set(frag, i)
                i += len
              }
              if (pesLen) {
              // payload size : remove PES header + PES extension
                pesLen -= pesHdrLen + 3
              }
              return { data: pesData, pts: pesPts, dts: pesDts, len: pesLen }
            } else {
              return null
            }
          }
        }, {
          key: 'pushAccesUnit',
          value: function pushAccesUnit (avcSample, avcTrack) {
            if (avcSample.units.length && avcSample.frame) {
              var samples = avcTrack.samples
              var nbSamples = samples.length
              // only push AVC sample if starting with a keyframe is not mandatory OR
              //    if keyframe already found in this fragment OR
              //       keyframe found in last fragment (track.sps) AND
              //          samples already appended (we already found a keyframe in this fragment) OR fragment is contiguous
              if (!this.config.forceKeyFrameOnDiscontinuity || avcSample.key === true || avcTrack.sps && (nbSamples || this.contiguous)) {
                avcSample.id = nbSamples
                samples.push(avcSample)
              } else {
              // dropped samples, track it
                avcTrack.dropped++
              }
            }
            if (avcSample.debug.length) {
              _logger.logger.log(avcSample.pts + '/' + avcSample.dts + ':' + avcSample.debug)
            }
          }
        }, {
          key: '_parseAVCPES',
          value: function _parseAVCPES (pes, last) {
            var _this = this

            // logger.log('parse new PES');
            var track = this._avcTrack
            var units = this._parseAVCNALu(pes.data)
            var debug = false
            var expGolombDecoder
            var avcSample = this.avcSample
            var push
            var i
            // free pes.data to save up some memory
            pes.data = null

            units.forEach(function (unit) {
              switch (unit.type) {
              // NDR
                case 1:
                  push = true
                  if (debug && avcSample) {
                    avcSample.debug += 'NDR '
                  }
                  avcSample.frame = true
                  // retrieve slice type by parsing beginning of NAL unit (follow H264 spec, slice_header definition) to detect keyframe embedded in NDR
                  var data = unit.data
                  if (data.length > 4) {
                    var sliceType = new _expGolomb2.default(data).readSliceType()
                    // 2 : I slice, 4 : SI slice, 7 : I slice, 9: SI slice
                    // SI slice : A slice that is coded using intra prediction only and using quantisation of the prediction samples.
                    // An SI slice can be coded such that its decoded samples can be constructed identically to an SP slice.
                    // I slice: A slice that is not an SI slice that is decoded using intra prediction only.
                    // if (sliceType === 2 || sliceType === 7) {
                    if (sliceType === 2 || sliceType === 4 || sliceType === 7 || sliceType === 9) {
                      avcSample.key = true
                    }
                  }
                  break
                // IDR
                case 5:
                  push = true
                  // handle PES not starting with AUD
                  if (!avcSample) {
                    avcSample = _this.avcSample = _this._createAVCSample(true, pes.pts, pes.dts, '')
                  }
                  if (debug) {
                    avcSample.debug += 'IDR '
                  }
                  avcSample.key = true
                  avcSample.frame = true
                  break
                // SEI
                case 6:
                  push = true
                  if (debug && avcSample) {
                    avcSample.debug += 'SEI '
                  }
                  expGolombDecoder = new _expGolomb2.default(_this.discardEPB(unit.data))

                  // skip frameType
                  expGolombDecoder.readUByte()

                  var payloadType = 0
                  var payloadSize = 0
                  var endOfCaptions = false
                  var b = 0

                  while (!endOfCaptions && expGolombDecoder.bytesAvailable > 1) {
                    payloadType = 0
                    do {
                      b = expGolombDecoder.readUByte()
                      payloadType += b
                    } while (b === 0xFF)

                    // Parse payload size.
                    payloadSize = 0
                    do {
                      b = expGolombDecoder.readUByte()
                      payloadSize += b
                    } while (b === 0xFF)

                    // TODO: there can be more than one payload in an SEI packet...
                    // TODO: need to read type and size in a while loop to get them all
                    if (payloadType === 4 && expGolombDecoder.bytesAvailable !== 0) {
                      endOfCaptions = true

                      var countryCode = expGolombDecoder.readUByte()

                      if (countryCode === 181) {
                        var providerCode = expGolombDecoder.readUShort()

                        if (providerCode === 49) {
                          var userStructure = expGolombDecoder.readUInt()

                          if (userStructure === 0x47413934) {
                            var userDataType = expGolombDecoder.readUByte()

                            // Raw CEA-608 bytes wrapped in CEA-708 packet
                            if (userDataType === 3) {
                              var firstByte = expGolombDecoder.readUByte()
                              var secondByte = expGolombDecoder.readUByte()

                              var totalCCs = 31 & firstByte
                              var byteArray = [firstByte, secondByte]

                              for (i = 0; i < totalCCs; i++) {
                              // 3 bytes per CC
                                byteArray.push(expGolombDecoder.readUByte())
                                byteArray.push(expGolombDecoder.readUByte())
                                byteArray.push(expGolombDecoder.readUByte())
                              }

                              _this._insertSampleInOrder(_this._txtTrack.samples, { type: 3, pts: pes.pts, bytes: byteArray })
                            }
                          }
                        }
                      }
                    } else if (payloadSize < expGolombDecoder.bytesAvailable) {
                      for (i = 0; i < payloadSize; i++) {
                        expGolombDecoder.readUByte()
                      }
                    }
                  }
                  break
                // SPS
                case 7:
                  push = true
                  if (debug && avcSample) {
                    avcSample.debug += 'SPS '
                  }
                  if (!track.sps) {
                    expGolombDecoder = new _expGolomb2.default(unit.data)
                    var config = expGolombDecoder.readSPS()
                    track.width = config.width
                    track.height = config.height
                    track.pixelRatio = config.pixelRatio
                    track.sps = [unit.data]
                    track.duration = _this._duration
                    var codecarray = unit.data.subarray(1, 4)
                    var codecstring = 'avc1.'
                    for (i = 0; i < 3; i++) {
                      var h = codecarray[i].toString(16)
                      if (h.length < 2) {
                        h = '0' + h
                      }
                      codecstring += h
                    }
                    track.codec = codecstring
                  }
                  break
                // PPS
                case 8:
                  push = true
                  if (debug && avcSample) {
                    avcSample.debug += 'PPS '
                  }
                  if (!track.pps) {
                    track.pps = [unit.data]
                  }
                  break
                // AUD
                case 9:
                  push = false
                  if (avcSample) {
                    _this.pushAccesUnit(avcSample, track)
                  }
                  avcSample = _this.avcSample = _this._createAVCSample(false, pes.pts, pes.dts, debug ? 'AUD ' : '')
                  break
                // Filler Data
                case 12:
                  push = false
                  break
                default:
                  push = false
                  if (avcSample) {
                    avcSample.debug += 'unknown NAL ' + unit.type + ' '
                  }
                  break
              }
              if (avcSample && push) {
                var _units = avcSample.units
                _units.push(unit)
              }
            })
            // if last PES packet, push samples
            if (last && avcSample) {
              this.pushAccesUnit(avcSample, track)
              this.avcSample = null
            }
          }
        }, {
          key: '_createAVCSample',
          value: function _createAVCSample (key, pts, dts, debug) {
            return { key: key, pts: pts, dts: dts, units: [], debug: debug }
          }
        }, {
          key: '_insertSampleInOrder',
          value: function _insertSampleInOrder (arr, data) {
            var len = arr.length
            if (len > 0) {
              if (data.pts >= arr[len - 1].pts) {
                arr.push(data)
              } else {
                for (var pos = len - 1; pos >= 0; pos--) {
                  if (data.pts < arr[pos].pts) {
                    arr.splice(pos, 0, data)
                    break
                  }
                }
              }
            } else {
              arr.push(data)
            }
          }
        }, {
          key: '_getLastNalUnit',
          value: function _getLastNalUnit () {
            var avcSample = this.avcSample
            var lastUnit = void 0
            // try to fallback to previous sample if current one is empty
            if (!avcSample || avcSample.units.length === 0) {
              var track = this._avcTrack
              var samples = track.samples
              avcSample = samples[samples.length - 1]
            }
            if (avcSample) {
              var units = avcSample.units
              lastUnit = units[units.length - 1]
            }
            return lastUnit
          }
        }, {
          key: '_parseAVCNALu',
          value: function _parseAVCNALu (array) {
            var i = 0
            var len = array.byteLength
            var value
            var overflow
            var track = this._avcTrack
            var state = track.naluState || 0
            var lastState = state
            var units = []
            var unit
            var unitType
            var lastUnitStart = -1
            var lastUnitType
            // logger.log('PES:' + Hex.hexDump(array));

            if (state === -1) {
            // special use case where we found 3 or 4-byte start codes exactly at the end of previous PES packet
              lastUnitStart = 0
              // NALu type is value read from offset 0
              lastUnitType = array[0] & 0x1f
              state = 0
              i = 1
            }

            while (i < len) {
              value = array[i++]
              // optimization. state 0 and 1 are the predominant case. let's handle them outside of the switch/case
              if (!state) {
                state = value ? 0 : 1
                continue
              }
              if (state === 1) {
                state = value ? 0 : 2
                continue
              }
              // here we have state either equal to 2 or 3
              if (!value) {
                state = 3
              } else if (value === 1) {
                if (lastUnitStart >= 0) {
                  unit = { data: array.subarray(lastUnitStart, i - state - 1), type: lastUnitType }
                  // logger.log('pushing NALU, type/size:' + unit.type + '/' + unit.data.byteLength);
                  units.push(unit)
                } else {
                // lastUnitStart is undefined => this is the first start code found in this PES packet
                // first check if start code delimiter is overlapping between 2 PES packets,
                // ie it started in last packet (lastState not zero)
                // and ended at the beginning of this PES packet (i <= 4 - lastState)
                  var lastUnit = this._getLastNalUnit()
                  if (lastUnit) {
                    if (lastState && i <= 4 - lastState) {
                    // start delimiter overlapping between PES packets
                    // strip start delimiter bytes from the end of last NAL unit
                    // check if lastUnit had a state different from zero
                      if (lastUnit.state) {
                      // strip last bytes
                        lastUnit.data = lastUnit.data.subarray(0, lastUnit.data.byteLength - lastState)
                      }
                    }
                    // If NAL units are not starting right at the beginning of the PES packet, push preceding data into previous NAL unit.
                    overflow = i - state - 1
                    if (overflow > 0) {
                    // logger.log('first NALU found with overflow:' + overflow);
                      var tmp = new Uint8Array(lastUnit.data.byteLength + overflow)
                      tmp.set(lastUnit.data, 0)
                      tmp.set(array.subarray(0, overflow), lastUnit.data.byteLength)
                      lastUnit.data = tmp
                    }
                  }
                }
                // check if we can read unit type
                if (i < len) {
                  unitType = array[i] & 0x1f
                  // logger.log('find NALU @ offset:' + i + ',type:' + unitType);
                  lastUnitStart = i
                  lastUnitType = unitType
                  state = 0
                } else {
                // not enough byte to read unit type. let's read it on next PES parsing
                  state = -1
                }
              } else {
                state = 0
              }
            }
            if (lastUnitStart >= 0 && state >= 0) {
              unit = { data: array.subarray(lastUnitStart, len), type: lastUnitType, state: state }
              units.push(unit)
              // logger.log('pushing NALU, type/size/state:' + unit.type + '/' + unit.data.byteLength + '/' + state);
            }
            // no NALu found
            if (units.length === 0) {
            // append pes.data to previous NAL unit
              var _lastUnit = this._getLastNalUnit()
              if (_lastUnit) {
                var _tmp = new Uint8Array(_lastUnit.data.byteLength + array.byteLength)
                _tmp.set(_lastUnit.data, 0)
                _tmp.set(array, _lastUnit.data.byteLength)
                _lastUnit.data = _tmp
              }
            }
            track.naluState = state
            return units
          }

          /**
     * remove Emulation Prevention bytes from a RBSP
     */

        }, {
          key: 'discardEPB',
          value: function discardEPB (data) {
            var length = data.byteLength
            var EPBPositions = []
            var i = 1
            var newLength
            var newData

            // Find all `Emulation Prevention Bytes`
            while (i < length - 2) {
              if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
                EPBPositions.push(i + 2)
                i += 2
              } else {
                i++
              }
            }

            // If no Emulation Prevention Bytes were found just return the original
            // array
            if (EPBPositions.length === 0) {
              return data
            }

            // Create a new array to hold the NAL unit data
            newLength = length - EPBPositions.length
            newData = new Uint8Array(newLength)
            var sourceIndex = 0

            for (i = 0; i < newLength; sourceIndex++, i++) {
              if (sourceIndex === EPBPositions[0]) {
              // Skip this byte
                sourceIndex++
                // Remove this position index
                EPBPositions.shift()
              }
              newData[i] = data[sourceIndex]
            }
            return newData
          }
        }, {
          key: '_parseAACPES',
          value: function _parseAACPES (pes) {
            var track = this._audioTrack
            var data = pes.data
            var pts = pes.pts
            var startOffset = 0
            var aacOverFlow = this.aacOverFlow
            var aacLastPTS = this.aacLastPTS
            var config
            var frameLength
            var frameDuration
            var frameIndex
            var offset
            var headerLength
            var stamp
            var len
            var aacSample
            if (aacOverFlow) {
              var tmp = new Uint8Array(aacOverFlow.byteLength + data.byteLength)
              tmp.set(aacOverFlow, 0)
              tmp.set(data, aacOverFlow.byteLength)
              // logger.log(`AAC: append overflowing ${aacOverFlow.byteLength} bytes to beginning of new PES`);
              data = tmp
            }
            // look for ADTS header (0xFFFx)
            for (offset = startOffset, len = data.length; offset < len - 1; offset++) {
              if (data[offset] === 0xff && (data[offset + 1] & 0xf0) === 0xf0) {
                break
              }
            }
            // if ADTS header does not start straight from the beginning of the PES payload, raise an error
            if (offset) {
              var reason, fatal
              if (offset < len - 1) {
                reason = 'AAC PES did not start with ADTS header,offset:' + offset
                fatal = false
              } else {
                reason = 'no ADTS header found in AAC PES'
                fatal = true
              }
              _logger.logger.warn('parsing error:' + reason)
              this.observer.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.FRAG_PARSING_ERROR, fatal: fatal, reason: reason })
              if (fatal) {
                return
              }
            }
            if (!track.samplerate) {
              var audioCodec = this.audioCodec
              config = _adts2.default.getAudioConfig(this.observer, data, offset, audioCodec)
              track.config = config.config
              track.samplerate = config.samplerate
              track.channelCount = config.channelCount
              track.codec = config.codec
              track.manifestCodec = config.manifestCodec
              track.duration = this._duration
              _logger.logger.log('parsed codec:' + track.codec + ',rate:' + config.samplerate + ',nb channel:' + config.channelCount)
            }
            frameIndex = 0
            frameDuration = 1024 * 90000 / track.samplerate

            // if last AAC frame is overflowing, we should ensure timestamps are contiguous:
            // first sample PTS should be equal to last sample PTS + frameDuration
            if (aacOverFlow && aacLastPTS) {
              var newPTS = aacLastPTS + frameDuration
              if (Math.abs(newPTS - pts) > 1) {
                _logger.logger.log('AAC: align PTS for overlapping frames by ' + Math.round((newPTS - pts) / 90))
                pts = newPTS
              }
            }

            while (offset + 5 < len) {
            // The protection skip bit tells us if we have 2 bytes of CRC data at the end of the ADTS header
              headerLength = data[offset + 1] & 0x01 ? 7 : 9
              // retrieve frame size
              frameLength = (data[offset + 3] & 0x03) << 11 | data[offset + 4] << 3 | (data[offset + 5] & 0xE0) >>> 5
              frameLength -= headerLength
              // stamp = pes.pts;

              if (frameLength > 0 && offset + headerLength + frameLength <= len) {
                stamp = pts + frameIndex * frameDuration
                // logger.log(`AAC frame, offset/length/total/pts:${offset+headerLength}/${frameLength}/${data.byteLength}/${(stamp/90).toFixed(0)}`);
                aacSample = { unit: data.subarray(offset + headerLength, offset + headerLength + frameLength), pts: stamp, dts: stamp }
                track.samples.push(aacSample)
                track.len += frameLength
                offset += frameLength + headerLength
                frameIndex++
                // look for ADTS header (0xFFFx)
                for (; offset < len - 1; offset++) {
                  if (data[offset] === 0xff && (data[offset + 1] & 0xf0) === 0xf0) {
                    break
                  }
                }
              } else {
                break
              }
            }
            if (offset < len) {
              aacOverFlow = data.subarray(offset, len)
              // logger.log(`AAC: overflow detected:${len-offset}`);
            } else {
              aacOverFlow = null
            }
            this.aacOverFlow = aacOverFlow
            this.aacLastPTS = stamp
          }
        }, {
          key: '_parseMPEGPES',
          value: function _parseMPEGPES (pes) {
            var data = pes.data
            var pts = pes.pts
            var length = data.length
            var frameIndex = 0
            var offset = 0
            var parsed

            while (offset < length && (parsed = this._parseMpeg(data, offset, length, frameIndex++, pts)) > 0) {
              offset += parsed
            }
          }
        }, {
          key: '_onMpegFrame',
          value: function _onMpegFrame (data, bitRate, sampleRate, channelCount, frameIndex, pts) {
            var frameDuration = 1152 / sampleRate * 1000
            var stamp = pts + frameIndex * frameDuration
            var track = this._audioTrack

            track.config = []
            track.channelCount = channelCount
            track.samplerate = sampleRate
            track.duration = this._duration
            track.samples.push({ unit: data, pts: stamp, dts: stamp })
            track.len += data.length
          }
        }, {
          key: '_onMpegNoise',
          value: function _onMpegNoise (data) {
            _logger.logger.warn('mpeg audio has noise: ' + data.length + ' bytes')
          }
        }, {
          key: '_parseMpeg',
          value: function _parseMpeg (data, start, end, frameIndex, pts) {
            var BitratesMap = [32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160]
            var SamplingRateMap = [44100, 48000, 32000, 22050, 24000, 16000, 11025, 12000, 8000]

            if (start + 2 > end) {
              return -1 // we need at least 2 bytes to detect sync pattern
            }
            if (data[start] === 0xFF || (data[start + 1] & 0xE0) === 0xE0) {
            // Using http://www.datavoyage.com/mpgscript/mpeghdr.htm as a reference
              if (start + 24 > end) {
                return -1
              }
              var headerB = data[start + 1] >> 3 & 3
              var headerC = data[start + 1] >> 1 & 3
              var headerE = data[start + 2] >> 4 & 15
              var headerF = data[start + 2] >> 2 & 3
              var headerG = !!(data[start + 2] & 2)
              if (headerB !== 1 && headerE !== 0 && headerE !== 15 && headerF !== 3) {
                var columnInBitrates = headerB === 3 ? 3 - headerC : headerC === 3 ? 3 : 4
                var bitRate = BitratesMap[columnInBitrates * 14 + headerE - 1] * 1000
                var columnInSampleRates = headerB === 3 ? 0 : headerB === 2 ? 1 : 2
                var sampleRate = SamplingRateMap[columnInSampleRates * 3 + headerF]
                var padding = headerG ? 1 : 0
                var channelCount = data[start + 3] >> 6 === 3 ? 1 : 2 // If bits of channel mode are `11` then it is a single channel (Mono)
                var frameLength = headerC === 3 ? (headerB === 3 ? 12 : 6) * bitRate / sampleRate + padding << 2 : (headerB === 3 ? 144 : 72) * bitRate / sampleRate + padding | 0
                if (start + frameLength > end) {
                  return -1
                }
                if (this._onMpegFrame) {
                  this._onMpegFrame(data.subarray(start, start + frameLength), bitRate, sampleRate, channelCount, frameIndex, pts)
                }
                return frameLength
              }
            }
            // noise or ID3, trying to skip
            var offset = start + 2
            while (offset < end) {
              if (data[offset - 1] === 0xFF && (data[offset] & 0xE0) === 0xE0) {
              // sync pattern is found
                if (this._onMpegNoise) {
                  this._onMpegNoise(data.subarray(start, offset - 1))
                }
                return offset - start - 1
              }
              offset++
            }
            return -1
          }
        }, {
          key: '_parseID3PES',
          value: function _parseID3PES (pes) {
            this._id3Track.samples.push(pes)
          }
        }], [{
          key: 'probe',
          value: function probe (data) {
          // a TS fragment should contain at least 3 TS packets, a PAT, a PMT, and one PID, each starting with 0x47
            if (data.length >= 3 * 188 && data[0] === 0x47 && data[188] === 0x47 && data[2 * 188] === 0x47) {
              return true
            } else {
              return false
            }
          }
        }])

        return TSDemuxer
      }())

      exports.default = TSDemuxer
    }, { 21: 21, 25: 25, 28: 28, 30: 30, 32: 32, 50: 50 }],
    30: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })
      var ErrorTypes = exports.ErrorTypes = {
      // Identifier for a network error (loading error / timeout ...)
        NETWORK_ERROR: 'networkError',
        // Identifier for a media Error (video/parsing/mediasource error)
        MEDIA_ERROR: 'mediaError',
        // Identifier for a mux Error (demuxing/remuxing)
        MUX_ERROR: 'muxError',
        // Identifier for all other errors
        OTHER_ERROR: 'otherError'
      }

      var ErrorDetails = exports.ErrorDetails = {
      // Identifier for a manifest load error - data: { url : faulty URL, response : { code: error code, text: error text }}
        MANIFEST_LOAD_ERROR: 'manifestLoadError',
        // Identifier for a manifest load timeout - data: { url : faulty URL, response : { code: error code, text: error text }}
        MANIFEST_LOAD_TIMEOUT: 'manifestLoadTimeOut',
        // Identifier for a manifest parsing error - data: { url : faulty URL, reason : error reason}
        MANIFEST_PARSING_ERROR: 'manifestParsingError',
        // Identifier for a manifest with only incompatible codecs error - data: { url : faulty URL, reason : error reason}
        MANIFEST_INCOMPATIBLE_CODECS_ERROR: 'manifestIncompatibleCodecsError',
        // Identifier for a level load error - data: { url : faulty URL, response : { code: error code, text: error text }}
        LEVEL_LOAD_ERROR: 'levelLoadError',
        // Identifier for a level load timeout - data: { url : faulty URL, response : { code: error code, text: error text }}
        LEVEL_LOAD_TIMEOUT: 'levelLoadTimeOut',
        // Identifier for a level switch error - data: { level : faulty level Id, event : error description}
        LEVEL_SWITCH_ERROR: 'levelSwitchError',
        // Identifier for an audio track load error - data: { url : faulty URL, response : { code: error code, text: error text }}
        AUDIO_TRACK_LOAD_ERROR: 'audioTrackLoadError',
        // Identifier for an audio track load timeout - data: { url : faulty URL, response : { code: error code, text: error text }}
        AUDIO_TRACK_LOAD_TIMEOUT: 'audioTrackLoadTimeOut',
        // Identifier for fragment load error - data: { frag : fragment object, response : { code: error code, text: error text }}
        FRAG_LOAD_ERROR: 'fragLoadError',
        // Identifier for fragment loop loading error - data: { frag : fragment object}
        FRAG_LOOP_LOADING_ERROR: 'fragLoopLoadingError',
        // Identifier for fragment load timeout error - data: { frag : fragment object}
        FRAG_LOAD_TIMEOUT: 'fragLoadTimeOut',
        // Identifier for a fragment decryption error event - data: {id : demuxer Id,frag: fragment object, reason : parsing error description }
        FRAG_DECRYPT_ERROR: 'fragDecryptError',
        // Identifier for a fragment parsing error event - data: { id : demuxer Id, reason : parsing error description }
        // will be renamed DEMUX_PARSING_ERROR and switched to MUX_ERROR in the next major release
        FRAG_PARSING_ERROR: 'fragParsingError',
        // Identifier for a remux alloc error event - data: { id : demuxer Id, frag : fragment object, bytes : nb of bytes on which allocation failed , reason : error text }
        REMUX_ALLOC_ERROR: 'remuxAllocError',
        // Identifier for decrypt key load error - data: { frag : fragment object, response : { code: error code, text: error text }}
        KEY_LOAD_ERROR: 'keyLoadError',
        // Identifier for decrypt key load timeout error - data: { frag : fragment object}
        KEY_LOAD_TIMEOUT: 'keyLoadTimeOut',
        // Triggered when an exception occurs while adding a sourceBuffer to MediaSource - data : {  err : exception , mimeType : mimeType }
        BUFFER_ADD_CODEC_ERROR: 'bufferAddCodecError',
        // Identifier for a buffer append error - data: append error description
        BUFFER_APPEND_ERROR: 'bufferAppendError',
        // Identifier for a buffer appending error event - data: appending error description
        BUFFER_APPENDING_ERROR: 'bufferAppendingError',
        // Identifier for a buffer stalled error event
        BUFFER_STALLED_ERROR: 'bufferStalledError',
        // Identifier for a buffer full event
        BUFFER_FULL_ERROR: 'bufferFullError',
        // Identifier for a buffer seek over hole event
        BUFFER_SEEK_OVER_HOLE: 'bufferSeekOverHole',
        // Identifier for a buffer nudge on stall (playback is stuck although currentTime is in a buffered area)
        BUFFER_NUDGE_ON_STALL: 'bufferNudgeOnStall',
        // Identifier for an internal exception happening inside hls.js while handling an event
        INTERNAL_EXCEPTION: 'internalException',
        // Malformed WebVTT contents
        WEBVTT_EXCEPTION: 'webVTTException'
      }
    }, {}],
    31: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _typeof = typeof Symbol === 'function' && typeof Symbol.iterator === 'symbol' ? function (obj) { return typeof obj } : function (obj) { return obj && typeof Symbol === 'function' && obj.constructor === Symbol && obj !== Symbol.prototype ? 'symbol' : typeof obj }

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }()) /*
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     * All objects in the event handling chain should inherit from this class
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     */

      var _logger = _dereq_(50)

      var _errors = _dereq_(30)

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      var EventHandler = (function () {
        function EventHandler (hls) {
          _classCallCheck(this, EventHandler)

          this.hls = hls
          this.onEvent = this.onEvent.bind(this)

          for (var _len = arguments.length, events = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
            events[_key - 1] = arguments[_key]
          }

          this.handledEvents = events
          this.useGenericHandler = true

          this.registerListeners()
        }

        _createClass(EventHandler, [{
          key: 'destroy',
          value: function destroy () {
            this.unregisterListeners()
          }
        }, {
          key: 'isEventHandler',
          value: function isEventHandler () {
            return _typeof(this.handledEvents) === 'object' && this.handledEvents.length && typeof this.onEvent === 'function'
          }
        }, {
          key: 'registerListeners',
          value: function registerListeners () {
            if (this.isEventHandler()) {
              this.handledEvents.forEach(function (event) {
                if (event === 'hlsEventGeneric') {
                  throw new Error('Forbidden event name: ' + event)
                }
                this.hls.on(event, this.onEvent)
              }.bind(this))
            }
          }
        }, {
          key: 'unregisterListeners',
          value: function unregisterListeners () {
            if (this.isEventHandler()) {
              this.handledEvents.forEach(function (event) {
                this.hls.off(event, this.onEvent)
              }.bind(this))
            }
          }

          /**
     * arguments: event (string), data (any)
     */

        }, {
          key: 'onEvent',
          value: function onEvent (event, data) {
            this.onEventGeneric(event, data)
          }
        }, {
          key: 'onEventGeneric',
          value: function onEventGeneric (event, data) {
            var eventToFunction = function eventToFunction (event, data) {
              var funcName = 'on' + event.replace('hls', '')
              if (typeof this[funcName] !== 'function') {
                throw new Error('Event ' + event + ' has no generic handler in this ' + this.constructor.name + ' class (tried ' + funcName + ')')
              }
              return this[funcName].bind(this, data)
            }
            try {
              eventToFunction.call(this, event, data).call()
            } catch (err) {
              _logger.logger.error('internal error happened while processing ' + event + ':' + err.message)
              this.hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.OTHER_ERROR, details: _errors.ErrorDetails.INTERNAL_EXCEPTION, fatal: false, event: event, err: err })
            }
          }
        }])

        return EventHandler
      }())

      exports.default = EventHandler
    }, { 30: 30, 32: 32, 50: 50 }],
    32: [function (_dereq_, module, exports) {
      'use strict'

      module.exports = {
      // fired before MediaSource is attaching to media element - data: { media }
        MEDIA_ATTACHING: 'hlsMediaAttaching',
        // fired when MediaSource has been succesfully attached to media element - data: { }
        MEDIA_ATTACHED: 'hlsMediaAttached',
        // fired before detaching MediaSource from media element - data: { }
        MEDIA_DETACHING: 'hlsMediaDetaching',
        // fired when MediaSource has been detached from media element - data: { }
        MEDIA_DETACHED: 'hlsMediaDetached',
        // fired when we buffer is going to be resetted
        BUFFER_RESET: 'hlsBufferReset',
        // fired when we know about the codecs that we need buffers for to push into - data: {tracks : { container, codec, levelCodec, initSegment, metadata }}
        BUFFER_CODECS: 'hlsBufferCodecs',
        // fired when sourcebuffers have been created data: { tracks : tracks}
        BUFFER_CREATED: 'hlsBufferCreated',
        // fired when we append a segment to the buffer - data: { segment: segment object }
        BUFFER_APPENDING: 'hlsBufferAppending',
        // fired when we are done with appending a media segment to the buffer data : { parent : segment parent that triggered BUFFER_APPENDING , pending : nb of segments waiting for appending for this segment parent}
        BUFFER_APPENDED: 'hlsBufferAppended',
        // fired when the stream is finished and we want to notify the media buffer that there will be no more data
        BUFFER_EOS: 'hlsBufferEos',
        // fired when the media buffer should be flushed - data {startOffset, endOffset}
        BUFFER_FLUSHING: 'hlsBufferFlushing',
        // fired when the media has been flushed
        BUFFER_FLUSHED: 'hlsBufferFlushed',
        // fired to signal that a manifest loading starts - data: { url : manifestURL}
        MANIFEST_LOADING: 'hlsManifestLoading',
        // fired after manifest has been loaded - data: { levels : [available quality levels] , audioTracks : [ available audio tracks], url : manifestURL, stats : { trequest, tfirst, tload, mtime}}
        MANIFEST_LOADED: 'hlsManifestLoaded',
        // fired after manifest has been parsed - data: { levels : [available quality levels] , firstLevel : index of first quality level appearing in Manifest}
        MANIFEST_PARSED: 'hlsManifestParsed',
        // fired when a level switch is requested - data: { level : id of new level } // deprecated in favor LEVEL_SWITCHING
        LEVEL_SWITCH: 'hlsLevelSwitch',
        // fired when a level switch is requested - data: { level : id of new level }
        LEVEL_SWITCHING: 'hlsLevelSwitching',
        // fired when a level switch is effective - data: { level : id of new level }
        LEVEL_SWITCHED: 'hlsLevelSwitched',
        // fired when a level playlist loading starts - data: { url : level URL  level : id of level being loaded}
        LEVEL_LOADING: 'hlsLevelLoading',
        // fired when a level playlist loading finishes - data: { details : levelDetails object, level : id of loaded level, stats : { trequest, tfirst, tload, mtime} }
        LEVEL_LOADED: 'hlsLevelLoaded',
        // fired when a level's details have been updated based on previous details, after it has been loaded. - data: { details : levelDetails object, level : id of updated level }
        LEVEL_UPDATED: 'hlsLevelUpdated',
        // fired when a level's PTS information has been updated after parsing a fragment - data: { details : levelDetails object, level : id of updated level, drift: PTS drift observed when parsing last fragment }
        LEVEL_PTS_UPDATED: 'hlsLevelPtsUpdated',
        // fired to notify that audio track lists has been updated data: { audioTracks : audioTracks}
        AUDIO_TRACKS_UPDATED: 'hlsAudioTracksUpdated',
        // fired when an audio track switch occurs - data: {  id : audio track id} // deprecated in favor AUDIO_TRACK_SWITCHING
        AUDIO_TRACK_SWITCH: 'hlsAudioTrackSwitch',
        // fired when an audio track switching is requested - data: {  id : audio track id}
        AUDIO_TRACK_SWITCHING: 'hlsAudioTrackSwitching',
        // fired when an audio track switch actually occurs - data: {  id : audio track id}
        AUDIO_TRACK_SWITCHED: 'hlsAudioTrackSwitched',
        // fired when an audio track loading starts - data: { url : audio track URL  id : audio track id}
        AUDIO_TRACK_LOADING: 'hlsAudioTrackLoading',
        // fired when an audio track loading  finishes - data: { details : levelDetails object, id : audio track id, stats : { trequest, tfirst, tload, mtime} }
        AUDIO_TRACK_LOADED: 'hlsAudioTrackLoaded',
        // fired to notify that subtitle track lists has been updated data: { subtitleTracks : subtitleTracks}
        SUBTITLE_TRACKS_UPDATED: 'hlsSubtitleTracksUpdated',
        // fired when an subtitle track switch occurs - data: {  id : subtitle track id}
        SUBTITLE_TRACK_SWITCH: 'hlsSubtitleTrackSwitch',
        // fired when an subtitle track loading starts - data: { url : subtitle track URL  id : subtitle track id}
        SUBTITLE_TRACK_LOADING: 'hlsSubtitleTrackLoading',
        // fired when an subtitle track loading  finishes - data: { details : levelDetails object, id : subtitle track id, stats : { trequest, tfirst, tload, mtime} }
        SUBTITLE_TRACK_LOADED: 'hlsSubtitleTrackLoaded',
        // fired when a subtitle fragment has been processed - data: { success : boolean, frag : the processed frag}
        SUBTITLE_FRAG_PROCESSED: 'hlsSubtitleFragProcessed',
        // fired when the first timestamp is found. - data: { id : demuxer id, initPTS: initPTS , frag : fragment object}
        INIT_PTS_FOUND: 'hlsInitPtsFound',
        // fired when a fragment loading starts - data: { frag : fragment object}
        FRAG_LOADING: 'hlsFragLoading',
        // fired when a fragment loading is progressing - data: { frag : fragment object, { trequest, tfirst, loaded}}
        FRAG_LOAD_PROGRESS: 'hlsFragLoadProgress',
        // Identifier for fragment load aborting for emergency switch down - data: {frag : fragment object}
        FRAG_LOAD_EMERGENCY_ABORTED: 'hlsFragLoadEmergencyAborted',
        // fired when a fragment loading is completed - data: { frag : fragment object, payload : fragment payload, stats : { trequest, tfirst, tload, length}}
        FRAG_LOADED: 'hlsFragLoaded',
        // fired when a fragment has finished decrypting - data: { id : demuxer id, frag: fragment object, stats : {tstart,tdecrypt} }
        FRAG_DECRYPTED: 'hlsFragDecrypted',
        // fired when Init Segment has been extracted from fragment - data: { id : demuxer id, frag: fragment object, moov : moov MP4 box, codecs : codecs found while parsing fragment}
        FRAG_PARSING_INIT_SEGMENT: 'hlsFragParsingInitSegment',
        // fired when parsing sei text is completed - data: { id : demuxer id, , frag: fragment object, samples : [ sei samples pes ] }
        FRAG_PARSING_USERDATA: 'hlsFragParsingUserdata',
        // fired when parsing id3 is completed - data: { id : demuxer id, frag: fragment object, samples : [ id3 samples pes ] }
        FRAG_PARSING_METADATA: 'hlsFragParsingMetadata',
        // fired when data have been extracted from fragment - data: { id : demuxer id, frag: fragment object, data1 : moof MP4 box or TS fragments, data2 : mdat MP4 box or null}
        FRAG_PARSING_DATA: 'hlsFragParsingData',
        // fired when fragment parsing is completed - data: { id : demuxer id,frag: fragment object }
        FRAG_PARSED: 'hlsFragParsed',
        // fired when fragment remuxed MP4 boxes have all been appended into SourceBuffer - data: { id : demuxer id,frag : fragment object, stats : { trequest, tfirst, tload, tparsed, tbuffered, length} }
        FRAG_BUFFERED: 'hlsFragBuffered',
        // fired when fragment matching with current media position is changing - data : { id : demuxer id, frag : fragment object }
        FRAG_CHANGED: 'hlsFragChanged',
        // Identifier for a FPS drop event - data: {curentDropped, currentDecoded, totalDroppedFrames}
        FPS_DROP: 'hlsFpsDrop',
        // triggered when FPS drop triggers auto level capping - data: {level, droppedlevel}
        FPS_DROP_LEVEL_CAPPING: 'hlsFpsDropLevelCapping',
        // Identifier for an error event - data: { type : error type, details : error details, fatal : if true, hls.js cannot/will not try to recover, if false, hls.js will try to recover,other error specific data}
        ERROR: 'hlsError',
        // fired when hls.js instance starts destroying. Different from MEDIA_DETACHED as one could want to detach and reattach a media to the instance of hls.js to handle mid-rolls for example
        DESTROYING: 'hlsDestroying',
        // fired when a decrypt key loading starts - data: { frag : fragment object}
        KEY_LOADING: 'hlsKeyLoading',
        // fired when a decrypt key loading is completed - data: { frag : fragment object, payload : key payload, stats : { trequest, tfirst, tload, length}}
        KEY_LOADED: 'hlsKeyLoaded',
        // fired upon stream controller state transitions - data: {previousState, nextState}
        STREAM_STATE_TRANSITION: 'hlsStreamStateTransition'
      }
    }, {}],
    33: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      /**
 *  AAC helper
 */

      var AAC = (function () {
        function AAC () {
          _classCallCheck(this, AAC)
        }

        _createClass(AAC, null, [{
          key: 'getSilentFrame',
          value: function getSilentFrame (codec, channelCount) {
            switch (codec) {
              case 'mp4a.40.2':
                if (channelCount === 1) {
                  return new Uint8Array([0x00, 0xc8, 0x00, 0x80, 0x23, 0x80])
                } else if (channelCount === 2) {
                  return new Uint8Array([0x21, 0x00, 0x49, 0x90, 0x02, 0x19, 0x00, 0x23, 0x80])
                } else if (channelCount === 3) {
                  return new Uint8Array([0x00, 0xc8, 0x00, 0x80, 0x20, 0x84, 0x01, 0x26, 0x40, 0x08, 0x64, 0x00, 0x8e])
                } else if (channelCount === 4) {
                  return new Uint8Array([0x00, 0xc8, 0x00, 0x80, 0x20, 0x84, 0x01, 0x26, 0x40, 0x08, 0x64, 0x00, 0x80, 0x2c, 0x80, 0x08, 0x02, 0x38])
                } else if (channelCount === 5) {
                  return new Uint8Array([0x00, 0xc8, 0x00, 0x80, 0x20, 0x84, 0x01, 0x26, 0x40, 0x08, 0x64, 0x00, 0x82, 0x30, 0x04, 0x99, 0x00, 0x21, 0x90, 0x02, 0x38])
                } else if (channelCount === 6) {
                  return new Uint8Array([0x00, 0xc8, 0x00, 0x80, 0x20, 0x84, 0x01, 0x26, 0x40, 0x08, 0x64, 0x00, 0x82, 0x30, 0x04, 0x99, 0x00, 0x21, 0x90, 0x02, 0x00, 0xb2, 0x00, 0x20, 0x08, 0xe0])
                }
                break
              // handle HE-AAC below (mp4a.40.5 / mp4a.40.29)
              default:
                if (channelCount === 1) {
                // ffmpeg -y -f lavfi -i "aevalsrc=0:d=0.05" -c:a libfdk_aac -profile:a aac_he -b:a 4k output.aac && hexdump -v -e '16/1 "0x%x," "\n"' -v output.aac
                  return new Uint8Array([0x1, 0x40, 0x22, 0x80, 0xa3, 0x4e, 0xe6, 0x80, 0xba, 0x8, 0x0, 0x0, 0x0, 0x1c, 0x6, 0xf1, 0xc1, 0xa, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5e])
                } else if (channelCount === 2) {
                // ffmpeg -y -f lavfi -i "aevalsrc=0|0:d=0.05" -c:a libfdk_aac -profile:a aac_he_v2 -b:a 4k output.aac && hexdump -v -e '16/1 "0x%x," "\n"' -v output.aac
                  return new Uint8Array([0x1, 0x40, 0x22, 0x80, 0xa3, 0x5e, 0xe6, 0x80, 0xba, 0x8, 0x0, 0x0, 0x0, 0x0, 0x95, 0x0, 0x6, 0xf1, 0xa1, 0xa, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5e])
                } else if (channelCount === 3) {
                // ffmpeg -y -f lavfi -i "aevalsrc=0|0|0:d=0.05" -c:a libfdk_aac -profile:a aac_he_v2 -b:a 4k output.aac && hexdump -v -e '16/1 "0x%x," "\n"' -v output.aac
                  return new Uint8Array([0x1, 0x40, 0x22, 0x80, 0xa3, 0x5e, 0xe6, 0x80, 0xba, 0x8, 0x0, 0x0, 0x0, 0x0, 0x95, 0x0, 0x6, 0xf1, 0xa1, 0xa, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5e])
                }
                break
            }
            return null
          }
        }])

        return AAC
      }())

      exports.default = AAC
    }, {}],
    34: [function (_dereq_, module, exports) {
      'use strict'

      /**
 * Buffer Helper utils, providing methods dealing buffer length retrieval
*/

      var BufferHelper = {
        isBuffered: function isBuffered (media, position) {
          if (media) {
            var buffered = media.buffered
            for (var i = 0; i < buffered.length; i++) {
              if (position >= buffered.start(i) && position <= buffered.end(i)) {
                return true
              }
            }
          }
          return false
        },

        bufferInfo: function bufferInfo (media, pos, maxHoleDuration) {
          if (media) {
            var vbuffered = media.buffered
            var buffered = []
            var i
            for (i = 0; i < vbuffered.length; i++) {
              buffered.push({ start: vbuffered.start(i), end: vbuffered.end(i) })
            }
            return this.bufferedInfo(buffered, pos, maxHoleDuration)
          } else {
            return { len: 0, start: pos, end: pos, nextStart: undefined }
          }
        },

        bufferedInfo: function bufferedInfo (buffered, pos, maxHoleDuration) {
          var buffered2 = []

          // bufferStart and bufferEnd are buffer boundaries around current video position
          var bufferLen
          var bufferStart
          var bufferEnd
          var bufferStartNext
          var i
          // sort on buffer.start/smaller end (IE does not always return sorted buffered range)
          buffered.sort(function (a, b) {
            var diff = a.start - b.start
            if (diff) {
              return diff
            } else {
              return b.end - a.end
            }
          })
          // there might be some small holes between buffer time range
          // consider that holes smaller than maxHoleDuration are irrelevant and build another
          // buffer time range representations that discards those holes
          for (i = 0; i < buffered.length; i++) {
            var buf2len = buffered2.length
            if (buf2len) {
              var buf2end = buffered2[buf2len - 1].end
              // if small hole (value between 0 or maxHoleDuration ) or overlapping (negative)
              if (buffered[i].start - buf2end < maxHoleDuration) {
              // merge overlapping time ranges
              // update lastRange.end only if smaller than item.end
              // e.g.  [ 1, 15] with  [ 2,8] => [ 1,15] (no need to modify lastRange.end)
              // whereas [ 1, 8] with  [ 2,15] => [ 1,15] ( lastRange should switch from [1,8] to [1,15])
                if (buffered[i].end > buf2end) {
                  buffered2[buf2len - 1].end = buffered[i].end
                }
              } else {
              // big hole
                buffered2.push(buffered[i])
              }
            } else {
            // first value
              buffered2.push(buffered[i])
            }
          }
          for (i = 0, bufferLen = 0, bufferStart = bufferEnd = pos; i < buffered2.length; i++) {
            var start = buffered2[i].start
            var end = buffered2[i].end
            // logger.log('buf start/end:' + buffered.start(i) + '/' + buffered.end(i));
            if (pos + maxHoleDuration >= start && pos < end) {
            // play position is inside this buffer TimeRange, retrieve end of buffer position and buffer length
              bufferStart = start
              bufferEnd = end
              bufferLen = bufferEnd - pos
            } else if (pos + maxHoleDuration < start) {
              bufferStartNext = start
              break
            }
          }
          return { len: bufferLen, start: bufferStart, end: bufferEnd, nextStart: bufferStartNext }
        }
      }

      module.exports = BufferHelper
    }, {}],
    35: [function (_dereq_, module, exports) {
      'use strict'

      var _logger = _dereq_(50)

      var LevelHelper = {

        mergeDetails: function mergeDetails (oldDetails, newDetails) {
          var start = Math.max(oldDetails.startSN, newDetails.startSN) - newDetails.startSN
          var end = Math.min(oldDetails.endSN, newDetails.endSN) - newDetails.startSN
          var delta = newDetails.startSN - oldDetails.startSN
          var oldfragments = oldDetails.fragments
          var newfragments = newDetails.fragments
          var ccOffset = 0
          var PTSFrag

          // check if old/new playlists have fragments in common
          if (end < start) {
            newDetails.PTSKnown = false
            return
          }
          // loop through overlapping SN and update startPTS , cc, and duration if any found
          for (var i = start; i <= end; i++) {
            var oldFrag = oldfragments[delta + i]
            var newFrag = newfragments[i]
            if (newFrag && oldFrag) {
              ccOffset = oldFrag.cc - newFrag.cc
              if (!isNaN(oldFrag.startPTS)) {
                newFrag.start = newFrag.startPTS = oldFrag.startPTS
                newFrag.endPTS = oldFrag.endPTS
                newFrag.duration = oldFrag.duration
                PTSFrag = newFrag
              }
            }
          }

          if (ccOffset) {
            _logger.logger.log('discontinuity sliding from playlist, take drift into account')
            for (i = 0; i < newfragments.length; i++) {
              newfragments[i].cc += ccOffset
            }
          }

          // if at least one fragment contains PTS info, recompute PTS information for all fragments
          if (PTSFrag) {
            LevelHelper.updateFragPTSDTS(newDetails, PTSFrag.sn, PTSFrag.startPTS, PTSFrag.endPTS, PTSFrag.startDTS, PTSFrag.endDTS)
          } else {
          // ensure that delta is within oldfragments range
          // also adjust sliding in case delta is 0 (we could have old=[50-60] and new=old=[50-61])
          // in that case we also need to adjust start offset of all fragments
            if (delta >= 0 && delta < oldfragments.length) {
            // adjust start by sliding offset
              var sliding = oldfragments[delta].start
              for (i = 0; i < newfragments.length; i++) {
                newfragments[i].start += sliding
              }
            }
          }
          // if we are here, it means we have fragments overlapping between
          // old and new level. reliable PTS info is thus relying on old level
          newDetails.PTSKnown = oldDetails.PTSKnown
        },

        updateFragPTSDTS: function updateFragPTSDTS (details, sn, startPTS, endPTS, startDTS, endDTS) {
          var fragIdx, fragments, frag, i
          // exit if sn out of range
          if (!details || sn < details.startSN || sn > details.endSN) {
            return 0
          }
          fragIdx = sn - details.startSN
          fragments = details.fragments
          frag = fragments[fragIdx]
          if (!isNaN(frag.startPTS)) {
          // delta PTS between audio and video
            var deltaPTS = Math.abs(frag.startPTS - startPTS)
            if (isNaN(frag.deltaPTS)) {
              frag.deltaPTS = deltaPTS
            } else {
              frag.deltaPTS = Math.max(deltaPTS, frag.deltaPTS)
            }
            startPTS = Math.min(startPTS, frag.startPTS)
            endPTS = Math.max(endPTS, frag.endPTS)
            startDTS = Math.min(startDTS, frag.startDTS)
            endDTS = Math.max(endDTS, frag.endDTS)
          }

          var drift = startPTS - frag.start

          frag.start = frag.startPTS = startPTS
          frag.endPTS = endPTS
          frag.startDTS = startDTS
          frag.endDTS = endDTS
          frag.duration = endPTS - startPTS
          // adjust fragment PTS/duration from seqnum-1 to frag 0
          for (i = fragIdx; i > 0; i--) {
            LevelHelper.updatePTS(fragments, i, i - 1)
          }

          // adjust fragment PTS/duration from seqnum to last frag
          for (i = fragIdx; i < fragments.length - 1; i++) {
            LevelHelper.updatePTS(fragments, i, i + 1)
          }
          details.PTSKnown = true
          // logger.log(`                                            frag start/end:${startPTS.toFixed(3)}/${endPTS.toFixed(3)}`);

          return drift
        },

        updatePTS: function updatePTS (fragments, fromIdx, toIdx) {
          var fragFrom = fragments[fromIdx]
          var fragTo = fragments[toIdx]
          var fragToPTS = fragTo.startPTS
          // if we know startPTS[toIdx]
          if (!isNaN(fragToPTS)) {
          // update fragment duration.
          // it helps to fix drifts between playlist reported duration and fragment real duration
            if (toIdx > fromIdx) {
              fragFrom.duration = fragToPTS - fragFrom.start
              if (fragFrom.duration < 0) {
                _logger.logger.warn('negative duration computed for frag ' + fragFrom.sn + ',level ' + fragFrom.level + ', there should be some duration drift between playlist and fragment!')
              }
            } else {
              fragTo.duration = fragFrom.start - fragToPTS
              if (fragTo.duration < 0) {
                _logger.logger.warn('negative duration computed for frag ' + fragTo.sn + ',level ' + fragTo.level + ', there should be some duration drift between playlist and fragment!')
              }
            }
          } else {
          // we dont know startPTS[toIdx]
            if (toIdx > fromIdx) {
              fragTo.start = fragFrom.start + fragFrom.duration
            } else {
              fragTo.start = fragFrom.start - fragTo.duration
            }
          }
        }
      } /**
    * Level Helper class, providing methods dealing with playlist sliding and drift
   */

      module.exports = LevelHelper
    }, { 50: 50 }],
    36: [function (_dereq_, module, exports) {
    /**
 * HLS interface
 */
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      var _urlToolkit = _dereq_(2)

      var _urlToolkit2 = _interopRequireDefault(_urlToolkit)

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _errors = _dereq_(30)

      var _playlistLoader = _dereq_(40)

      var _playlistLoader2 = _interopRequireDefault(_playlistLoader)

      var _fragmentLoader = _dereq_(38)

      var _fragmentLoader2 = _interopRequireDefault(_fragmentLoader)

      var _keyLoader = _dereq_(39)

      var _keyLoader2 = _interopRequireDefault(_keyLoader)

      var _streamController = _dereq_(12)

      var _streamController2 = _interopRequireDefault(_streamController)

      var _levelController = _dereq_(11)

      var _levelController2 = _interopRequireDefault(_levelController)

      var _logger = _dereq_(50)

      var _events3 = _dereq_(1)

      var _events4 = _interopRequireDefault(_events3)

      var _config = _dereq_(4)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      var Hls = (function () {
        _createClass(Hls, null, [{
          key: 'isSupported',
          value: function isSupported () {
            window.MediaSource = window.MediaSource || window.WebKitMediaSource
            return window.MediaSource && typeof window.MediaSource.isTypeSupported === 'function' && window.MediaSource.isTypeSupported('video/mp4; codecs="avc1.42E01E,mp4a.40.2"')
          }
        }, {
          key: 'version',
          get: function get () {
          // replaced with browserify-versionify transform
            return '0.7.5'
          }
        }, {
          key: 'Events',
          get: function get () {
            return _events2.default
          }
        }, {
          key: 'ErrorTypes',
          get: function get () {
            return _errors.ErrorTypes
          }
        }, {
          key: 'ErrorDetails',
          get: function get () {
            return _errors.ErrorDetails
          }
        }, {
          key: 'DefaultConfig',
          get: function get () {
            if (!Hls.defaultConfig) {
              return _config.hlsDefaultConfig
            }
            return Hls.defaultConfig
          },
          set: function set (defaultConfig) {
            Hls.defaultConfig = defaultConfig
          }
        }])

        function Hls () {
          var _this = this

          var config = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {}

          _classCallCheck(this, Hls)

          var defaultConfig = Hls.DefaultConfig

          if ((config.liveSyncDurationCount || config.liveMaxLatencyDurationCount) && (config.liveSyncDuration || config.liveMaxLatencyDuration)) {
            throw new Error('Illegal hls.js config: don\'t mix up liveSyncDurationCount/liveMaxLatencyDurationCount and liveSyncDuration/liveMaxLatencyDuration')
          }

          for (var prop in defaultConfig) {
            if (prop in config) {
              continue
            }
            config[prop] = defaultConfig[prop]
          }

          if (config.liveMaxLatencyDurationCount !== undefined && config.liveMaxLatencyDurationCount <= config.liveSyncDurationCount) {
            throw new Error('Illegal hls.js config: "liveMaxLatencyDurationCount" must be gt "liveSyncDurationCount"')
          }

          if (config.liveMaxLatencyDuration !== undefined && (config.liveMaxLatencyDuration <= config.liveSyncDuration || config.liveSyncDuration === undefined)) {
            throw new Error('Illegal hls.js config: "liveMaxLatencyDuration" must be gt "liveSyncDuration"')
          }

          (0, _logger.enableLogs)(config.debug)
          this.config = config
          this._autoLevelCapping = -1
          // observer setup
          var observer = this.observer = new _events4.default()
          observer.trigger = function trigger (event) {
            for (var _len = arguments.length, data = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
              data[_key - 1] = arguments[_key]
            }

            observer.emit.apply(observer, [event, event].concat(data))
          }

          observer.off = function off (event) {
            for (var _len2 = arguments.length, data = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
              data[_key2 - 1] = arguments[_key2]
            }

            observer.removeListener.apply(observer, [event].concat(data))
          }
          this.on = observer.on.bind(observer)
          this.off = observer.off.bind(observer)
          this.trigger = observer.trigger.bind(observer)

          // core controllers and network loaders
          var abrController = this.abrController = new config.abrController(this)
          var bufferController = new config.bufferController(this)
          var capLevelController = new config.capLevelController(this)
          var fpsController = new config.fpsController(this)
          var playListLoader = new _playlistLoader2.default(this)
          var fragmentLoader = new _fragmentLoader2.default(this)
          var keyLoader = new _keyLoader2.default(this)

          // network controllers
          var levelController = this.levelController = new _levelController2.default(this)
          var streamController = this.streamController = new _streamController2.default(this)
          var networkControllers = [levelController, streamController]

          // optional audio stream controller
          var Controller = config.audioStreamController
          if (Controller) {
            networkControllers.push(new Controller(this))
          }
          this.networkControllers = networkControllers

          var coreComponents = [playListLoader, fragmentLoader, keyLoader, abrController, bufferController, capLevelController, fpsController]

          // optional audio track and subtitle controller
          Controller = config.audioTrackController
          if (Controller) {
            var audioTrackController = new Controller(this)
            this.audioTrackController = audioTrackController
            coreComponents.push(audioTrackController)
          }

          Controller = config.subtitleTrackController
          if (Controller) {
            var subtitleTrackController = new Controller(this)
            this.subtitleTrackController = subtitleTrackController
            coreComponents.push(subtitleTrackController)
          }

          // optional subtitle controller
          [config.subtitleStreamController, config.timelineController].forEach(function (Controller) {
            if (Controller) {
              coreComponents.push(new Controller(_this))
            }
          })
          this.coreComponents = coreComponents
        }

        _createClass(Hls, [{
          key: 'destroy',
          value: function destroy () {
            _logger.logger.log('destroy')
            this.trigger(_events2.default.DESTROYING)
            this.detachMedia()
            this.coreComponents.concat(this.networkControllers).forEach(function (component) {
              component.destroy()
            })
            this.url = null
            this.observer.removeAllListeners()
            this._autoLevelCapping = -1
          }
        }, {
          key: 'attachMedia',
          value: function attachMedia (media) {
            _logger.logger.log('attachMedia')
            this.media = media
            this.trigger(_events2.default.MEDIA_ATTACHING, { media: media })
          }
        }, {
          key: 'detachMedia',
          value: function detachMedia () {
            _logger.logger.log('detachMedia')
            this.trigger(_events2.default.MEDIA_DETACHING)
            this.media = null
          }
        }, {
          key: 'loadSource',
          value: function loadSource (url) {
            url = _urlToolkit2.default.buildAbsoluteURL(window.location.href, url, { alwaysNormalize: true })
            _logger.logger.log('loadSource:' + url)
            this.url = url
            // when attaching to a source URL, trigger a playlist load
            this.trigger(_events2.default.MANIFEST_LOADING, { url: url })
          }
        }, {
          key: 'startLoad',
          value: function startLoad () {
            var startPosition = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : -1

            _logger.logger.log('startLoad(' + startPosition + ')')
            this.networkControllers.forEach(function (controller) {
              controller.startLoad(startPosition)
            })
          }
        }, {
          key: 'stopLoad',
          value: function stopLoad () {
            _logger.logger.log('stopLoad')
            this.networkControllers.forEach(function (controller) {
              controller.stopLoad()
            })
          }
        }, {
          key: 'swapAudioCodec',
          value: function swapAudioCodec () {
            _logger.logger.log('swapAudioCodec')
            this.streamController.swapAudioCodec()
          }
        }, {
          key: 'recoverMediaError',
          value: function recoverMediaError () {
            _logger.logger.log('recoverMediaError')
            var media = this.media
            this.detachMedia()
            this.attachMedia(media)
          }

          /** Return all quality levels **/

        }, {
          key: 'levels',
          get: function get () {
            return this.levelController.levels
          }

          /** Return current playback quality level **/

        }, {
          key: 'currentLevel',
          get: function get () {
            return this.streamController.currentLevel
          },
          /* set quality level immediately (-1 for automatic level selection) */

          set: function set (newLevel) {
            _logger.logger.log('set currentLevel:' + newLevel)
            this.loadLevel = newLevel
            this.streamController.immediateLevelSwitch()
          }

          /** Return next playback quality level (quality level of next fragment) **/

        }, {
          key: 'nextLevel',
          get: function get () {
            return this.streamController.nextLevel
          },
          /* set quality level for next fragment (-1 for automatic level selection) */

          set: function set (newLevel) {
            _logger.logger.log('set nextLevel:' + newLevel)
            this.levelController.manualLevel = newLevel
            this.streamController.nextLevelSwitch()
          }

          /** Return the quality level of current/last loaded fragment **/

        }, {
          key: 'loadLevel',
          get: function get () {
            return this.levelController.level
          },
          /* set quality level for current/next loaded fragment (-1 for automatic level selection) */

          set: function set (newLevel) {
            _logger.logger.log('set loadLevel:' + newLevel)
            this.levelController.manualLevel = newLevel
          }

          /** Return the quality level of next loaded fragment **/

        }, {
          key: 'nextLoadLevel',
          get: function get () {
            return this.levelController.nextLoadLevel
          },
          /** set quality level of next loaded fragment **/

          set: function set (level) {
            this.levelController.nextLoadLevel = level
          }

          /** Return first level (index of first level referenced in manifest)
    **/

        }, {
          key: 'firstLevel',
          get: function get () {
            return Math.max(this.levelController.firstLevel, this.minAutoLevel)
          },
          /** set first level (index of first level referenced in manifest)
    **/

          set: function set (newLevel) {
            _logger.logger.log('set firstLevel:' + newLevel)
            this.levelController.firstLevel = newLevel
          }

          /** Return start level (level of first fragment that will be played back)
        if not overrided by user, first level appearing in manifest will be used as start level
        if -1 : automatic start level selection, playback will start from level matching download bandwidth (determined from download of first segment)
    **/

        }, {
          key: 'startLevel',
          get: function get () {
            return this.levelController.startLevel
          },
          /** set  start level (level of first fragment that will be played back)
        if not overrided by user, first level appearing in manifest will be used as start level
        if -1 : automatic start level selection, playback will start from level matching download bandwidth (determined from download of first segment)
    **/

          set: function set (newLevel) {
            _logger.logger.log('set startLevel:' + newLevel)
            var hls = this
            // if not in automatic start level detection, ensure startLevel is greater than minAutoLevel
            if (newLevel !== -1) {
              newLevel = Math.max(newLevel, hls.minAutoLevel)
            }
            hls.levelController.startLevel = newLevel
          }

          /** Return the capping/max level value that could be used by automatic level selection algorithm **/

        }, {
          key: 'autoLevelCapping',
          get: function get () {
            return this._autoLevelCapping
          },
          /** set the capping/max level value that could be used by automatic level selection algorithm **/

          set: function set (newLevel) {
            _logger.logger.log('set autoLevelCapping:' + newLevel)
            this._autoLevelCapping = newLevel
          }

          /* check if we are in automatic level selection mode */

        }, {
          key: 'autoLevelEnabled',
          get: function get () {
            return this.levelController.manualLevel === -1
          }

          /* return manual level */

        }, {
          key: 'manualLevel',
          get: function get () {
            return this.levelController.manualLevel
          }

          /* return min level selectable in auto mode according to config.minAutoBitrate */

        }, {
          key: 'minAutoLevel',
          get: function get () {
            var hls = this
            var levels = hls.levels
            var minAutoBitrate = hls.config.minAutoBitrate
            var len = levels ? levels.length : 0
            for (var i = 0; i < len; i++) {
              var levelNextBitrate = levels[i].realBitrate ? Math.max(levels[i].realBitrate, levels[i].bitrate) : levels[i].bitrate
              if (levelNextBitrate > minAutoBitrate) {
                return i
              }
            }
            return 0
          }

          /* return max level selectable in auto mode according to autoLevelCapping */

        }, {
          key: 'maxAutoLevel',
          get: function get () {
            var hls = this
            var levels = hls.levels
            var autoLevelCapping = hls.autoLevelCapping
            var maxAutoLevel = void 0
            if (autoLevelCapping === -1 && levels && levels.length) {
              maxAutoLevel = levels.length - 1
            } else {
              maxAutoLevel = autoLevelCapping
            }
            return maxAutoLevel
          }

          // return next auto level

        }, {
          key: 'nextAutoLevel',
          get: function get () {
            var hls = this
            // ensure next auto level is between  min and max auto level
            return Math.min(Math.max(hls.abrController.nextAutoLevel, hls.minAutoLevel), hls.maxAutoLevel)
          },
          // this setter is used to force next auto level
          // this is useful to force a switch down in auto mode : in case of load error on level N, hls.js can set nextAutoLevel to N-1 for example)
          // forced value is valid for one fragment. upon succesful frag loading at forced level, this value will be resetted to -1 by ABR controller

          set: function set (nextLevel) {
            var hls = this
            hls.abrController.nextAutoLevel = Math.max(hls.minAutoLevel, nextLevel)
          }

          /** get alternate audio tracks list from playlist **/

        }, {
          key: 'audioTracks',
          get: function get () {
            var audioTrackController = this.audioTrackController
            return audioTrackController ? audioTrackController.audioTracks : []
          }

          /** get index of the selected audio track (index in audio track lists) **/

        }, {
          key: 'audioTrack',
          get: function get () {
            var audioTrackController = this.audioTrackController
            return audioTrackController ? audioTrackController.audioTrack : -1
          },
          /** select an audio track, based on its index in audio track lists**/

          set: function set (audioTrackId) {
            var audioTrackController = this.audioTrackController
            if (audioTrackController) {
              audioTrackController.audioTrack = audioTrackId
            }
          }
        }, {
          key: 'liveSyncPosition',
          get: function get () {
            return this.streamController.liveSyncPosition
          }

          /** get alternate subtitle tracks list from playlist **/

        }, {
          key: 'subtitleTracks',
          get: function get () {
            var subtitleTrackController = this.subtitleTrackController
            return subtitleTrackController ? subtitleTrackController.subtitleTracks : []
          }

          /** get index of the selected subtitle track (index in subtitle track lists) **/

        }, {
          key: 'subtitleTrack',
          get: function get () {
            var subtitleTrackController = this.subtitleTrackController
            return subtitleTrackController ? subtitleTrackController.subtitleTrack : -1
          },
          /** select an subtitle track, based on its index in subtitle track lists**/

          set: function set (subtitleTrackId) {
            var subtitleTrackController = this.subtitleTrackController
            if (subtitleTrackController) {
              subtitleTrackController.subtitleTrack = subtitleTrackId
            }
          }
        }])

        return Hls
      }())

      exports.default = Hls
    }, { 1: 1, 11: 11, 12: 12, 2: 2, 30: 30, 32: 32, 38: 38, 39: 39, 4: 4, 40: 40, 50: 50 }],
    37: [function (_dereq_, module, exports) {
      'use strict'

      // This is mostly for support of the es6 module export
      // syntax with the babel compiler, it looks like it doesnt support
      // function exports like we are used to in node/commonjs
      module.exports = _dereq_(36).default
    }, { 36: 36 }],
    38: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _eventHandler = _dereq_(31)

      var _eventHandler2 = _interopRequireDefault(_eventHandler)

      var _errors = _dereq_(30)

      var _logger = _dereq_(50)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      function _possibleConstructorReturn (self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called") } return call && (typeof call === 'object' || typeof call === 'function') ? call : self }

      function _inherits (subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass) } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass } /*
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * Fragment Loader
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               */

      var FragmentLoader = (function (_EventHandler) {
        _inherits(FragmentLoader, _EventHandler)

        function FragmentLoader (hls) {
          _classCallCheck(this, FragmentLoader)

          var _this = _possibleConstructorReturn(this, (FragmentLoader.__proto__ || Object.getPrototypeOf(FragmentLoader)).call(this, hls, _events2.default.FRAG_LOADING))

          _this.loaders = {}
          return _this
        }

        _createClass(FragmentLoader, [{
          key: 'destroy',
          value: function destroy () {
            var loaders = this.loaders
            for (var loaderName in loaders) {
              var loader = loaders[loaderName]
              if (loader) {
                loader.destroy()
              }
            }
            this.loaders = {}
            _eventHandler2.default.prototype.destroy.call(this)
          }
        }, {
          key: 'onFragLoading',
          value: function onFragLoading (data) {
            var frag = data.frag
            var type = frag.type
            var loader = this.loaders[type]
            var config = this.hls.config

            frag.loaded = 0
            if (loader) {
              _logger.logger.warn('abort previous fragment loader for type:' + type)
              loader.abort()
            }
            loader = this.loaders[type] = frag.loader = typeof config.fLoader !== 'undefined' ? new config.fLoader(config) : new config.loader(config)

            var loaderContext = void 0
            var loaderConfig = void 0
            var loaderCallbacks = void 0
            loaderContext = { url: frag.url, frag: frag, responseType: 'arraybuffer', progressData: false }
            var start = frag.byteRangeStartOffset
            var end = frag.byteRangeEndOffset
            if (!isNaN(start) && !isNaN(end)) {
              loaderContext.rangeStart = start
              loaderContext.rangeEnd = end
            }
            loaderConfig = { timeout: config.fragLoadingTimeOut, maxRetry: 0, retryDelay: 0, maxRetryDelay: config.fragLoadingMaxRetryTimeout }
            loaderCallbacks = { onSuccess: this.loadsuccess.bind(this), onError: this.loaderror.bind(this), onTimeout: this.loadtimeout.bind(this), onProgress: this.loadprogress.bind(this) }
            loader.load(loaderContext, loaderConfig, loaderCallbacks)
          }
        }, {
          key: 'loadsuccess',
          value: function loadsuccess (response, stats, context) {
            var payload = response.data
            var frag = context.frag
            // detach fragment loader on load success
            frag.loader = undefined
            this.loaders[frag.type] = undefined
            this.hls.trigger(_events2.default.FRAG_LOADED, { payload: payload, frag: frag, stats: stats })
          }
        }, {
          key: 'loaderror',
          value: function loaderror (response, context) {
            var loader = context.loader
            if (loader) {
              loader.abort()
            }
            this.loaders[context.type] = undefined
            this.hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.NETWORK_ERROR, details: _errors.ErrorDetails.FRAG_LOAD_ERROR, fatal: false, frag: context.frag, response: response })
          }
        }, {
          key: 'loadtimeout',
          value: function loadtimeout (stats, context) {
            var loader = context.loader
            if (loader) {
              loader.abort()
            }
            this.loaders[context.type] = undefined
            this.hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.NETWORK_ERROR, details: _errors.ErrorDetails.FRAG_LOAD_TIMEOUT, fatal: false, frag: context.frag })
          }

          // data will be used for progressive parsing

        }, {
          key: 'loadprogress',
          value: function loadprogress (stats, context, data) {
          // jshint ignore:line
            var frag = context.frag
            frag.loaded = stats.loaded
            this.hls.trigger(_events2.default.FRAG_LOAD_PROGRESS, { frag: frag, stats: stats })
          }
        }])

        return FragmentLoader
      }(_eventHandler2.default))

      exports.default = FragmentLoader
    }, { 30: 30, 31: 31, 32: 32, 50: 50 }],
    39: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _eventHandler = _dereq_(31)

      var _eventHandler2 = _interopRequireDefault(_eventHandler)

      var _errors = _dereq_(30)

      var _logger = _dereq_(50)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      function _possibleConstructorReturn (self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called") } return call && (typeof call === 'object' || typeof call === 'function') ? call : self }

      function _inherits (subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass) } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass } /*
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * Decrypt key Loader
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               */

      var KeyLoader = (function (_EventHandler) {
        _inherits(KeyLoader, _EventHandler)

        function KeyLoader (hls) {
          _classCallCheck(this, KeyLoader)

          var _this = _possibleConstructorReturn(this, (KeyLoader.__proto__ || Object.getPrototypeOf(KeyLoader)).call(this, hls, _events2.default.KEY_LOADING))

          _this.loaders = {}
          _this.decryptkey = null
          _this.decrypturl = null
          return _this
        }

        _createClass(KeyLoader, [{
          key: 'destroy',
          value: function destroy () {
            for (var loaderName in this.loaders) {
              var loader = this.loaders[loaderName]
              if (loader) {
                loader.destroy()
              }
            }
            this.loaders = {}
            _eventHandler2.default.prototype.destroy.call(this)
          }
        }, {
          key: 'onKeyLoading',
          value: function onKeyLoading (data) {
            var frag = data.frag
            var type = frag.type
            var loader = this.loaders[type]
            var decryptdata = frag.decryptdata
            var uri = decryptdata.uri
            // if uri is different from previous one or if decrypt key not retrieved yet
            if (uri !== this.decrypturl || this.decryptkey === null) {
              var config = this.hls.config

              if (loader) {
                _logger.logger.warn('abort previous key loader for type:' + type)
                loader.abort()
              }
              frag.loader = this.loaders[type] = new config.loader(config)
              this.decrypturl = uri
              this.decryptkey = null

              var loaderContext = void 0
              var loaderConfig = void 0
              var loaderCallbacks = void 0
              loaderContext = { url: uri, frag: frag, responseType: 'arraybuffer' }
              loaderConfig = { timeout: config.fragLoadingTimeOut, maxRetry: config.fragLoadingMaxRetry, retryDelay: config.fragLoadingRetryDelay, maxRetryDelay: config.fragLoadingMaxRetryTimeout }
              loaderCallbacks = { onSuccess: this.loadsuccess.bind(this), onError: this.loaderror.bind(this), onTimeout: this.loadtimeout.bind(this) }
              frag.loader.load(loaderContext, loaderConfig, loaderCallbacks)
            } else if (this.decryptkey) {
            // we already loaded this key, return it
              decryptdata.key = this.decryptkey
              this.hls.trigger(_events2.default.KEY_LOADED, { frag: frag })
            }
          }
        }, {
          key: 'loadsuccess',
          value: function loadsuccess (response, stats, context) {
            var frag = context.frag
            this.decryptkey = frag.decryptdata.key = new Uint8Array(response.data)
            // detach fragment loader on load success
            frag.loader = undefined
            this.loaders[frag.type] = undefined
            this.hls.trigger(_events2.default.KEY_LOADED, { frag: frag })
          }
        }, {
          key: 'loaderror',
          value: function loaderror (response, context) {
            var frag = context.frag
            var loader = frag.loader
            if (loader) {
              loader.abort()
            }
            this.loaders[context.type] = undefined
            this.hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.NETWORK_ERROR, details: _errors.ErrorDetails.KEY_LOAD_ERROR, fatal: false, frag: frag, response: response })
          }
        }, {
          key: 'loadtimeout',
          value: function loadtimeout (stats, context) {
            var frag = context.frag
            var loader = frag.loader
            if (loader) {
              loader.abort()
            }
            this.loaders[context.type] = undefined
            this.hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.NETWORK_ERROR, details: _errors.ErrorDetails.KEY_LOAD_TIMEOUT, fatal: false, frag: frag })
          }
        }])

        return KeyLoader
      }(_eventHandler2.default))

      exports.default = KeyLoader
    }, { 30: 30, 31: 31, 32: 32, 50: 50 }],
    40: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }()) /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * Playlist Loader
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     */

      var _urlToolkit = _dereq_(2)

      var _urlToolkit2 = _interopRequireDefault(_urlToolkit)

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _eventHandler = _dereq_(31)

      var _eventHandler2 = _interopRequireDefault(_eventHandler)

      var _errors = _dereq_(30)

      var _attrList = _dereq_(44)

      var _attrList2 = _interopRequireDefault(_attrList)

      var _logger = _dereq_(50)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _possibleConstructorReturn (self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called") } return call && (typeof call === 'object' || typeof call === 'function') ? call : self }

      function _inherits (subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass) } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      // https://regex101.com is your friend
      var MASTER_PLAYLIST_REGEX = /#EXT-X-STREAM-INF:([^\n\r]*)[\r\n]+([^\r\n]+)/g
      var MASTER_PLAYLIST_MEDIA_REGEX = /#EXT-X-MEDIA:(.*)/g
      var LEVEL_PLAYLIST_REGEX_FAST = /#EXTINF:(\d*(?:\.\d+)?)(?:,(.*))?|(?!#)(\S.+)|#EXT-X-BYTERANGE: *(.+)|#EXT-X-PROGRAM-DATE-TIME:(.+)|#.*/g
      var LEVEL_PLAYLIST_REGEX_SLOW = /(?:(?:#(EXTM3U))|(?:#EXT-X-(PLAYLIST-TYPE):(.+))|(?:#EXT-X-(MEDIA-SEQUENCE): *(\d+))|(?:#EXT-X-(TARGETDURATION): *(\d+))|(?:#EXT-X-(KEY):(.+))|(?:#EXT-X-(START):(.+))|(?:#EXT-X-(ENDLIST))|(?:#EXT-X-(DISCONTINUITY-SEQ)UENCE:(\d+))|(?:#EXT-X-(DIS)CONTINUITY))|(?:#EXT-X-(VERSION):(\d+))|(?:#EXT-X-(MAP):(.+))|(?:(#)(.*):(.*))|(?:(#)(.*))(?:.*)\r?\n?/

      var LevelKey = (function () {
        function LevelKey () {
          _classCallCheck(this, LevelKey)

          this.method = null
          this.key = null
          this.iv = null
          this._uri = null
        }

        _createClass(LevelKey, [{
          key: 'uri',
          get: function get () {
            if (!this._uri && this.reluri) {
              this._uri = _urlToolkit2.default.buildAbsoluteURL(this.baseuri, this.reluri, { alwaysNormalize: true })
            }
            return this._uri
          }
        }])

        return LevelKey
      }())

      var Fragment = (function () {
        function Fragment () {
          _classCallCheck(this, Fragment)

          this._url = null
          this._byteRange = null
          this._decryptdata = null
          this.tagList = []
        }

        _createClass(Fragment, [{
          key: 'createInitializationVector',

          /**
     * Utility method for parseLevelPlaylist to create an initialization vector for a given segment
     * @returns {Uint8Array}
     */
          value: function createInitializationVector (segmentNumber) {
            var uint8View = new Uint8Array(16)

            for (var i = 12; i < 16; i++) {
              uint8View[i] = segmentNumber >> 8 * (15 - i) & 0xff
            }

            return uint8View
          }

          /**
     * Utility method for parseLevelPlaylist to get a fragment's decryption data from the currently parsed encryption key data
     * @param levelkey - a playlist's encryption info
     * @param segmentNumber - the fragment's segment number
     * @returns {*} - an object to be applied as a fragment's decryptdata
     */

        }, {
          key: 'fragmentDecryptdataFromLevelkey',
          value: function fragmentDecryptdataFromLevelkey (levelkey, segmentNumber) {
            var decryptdata = levelkey

            if (levelkey && levelkey.method && levelkey.uri && !levelkey.iv) {
              decryptdata = new LevelKey()
              decryptdata.method = levelkey.method
              decryptdata.baseuri = levelkey.baseuri
              decryptdata.reluri = levelkey.reluri
              decryptdata.iv = this.createInitializationVector(segmentNumber)
            }

            return decryptdata
          }
        }, {
          key: 'cloneObj',
          value: function cloneObj (obj) {
            return JSON.parse(JSON.stringify(obj))
          }
        }, {
          key: 'url',
          get: function get () {
            if (!this._url && this.relurl) {
              this._url = _urlToolkit2.default.buildAbsoluteURL(this.baseurl, this.relurl, { alwaysNormalize: true })
            }
            return this._url
          },
          set: function set (value) {
            this._url = value
          }
        }, {
          key: 'programDateTime',
          get: function get () {
            if (!this._programDateTime && this.rawProgramDateTime) {
              this._programDateTime = new Date(Date.parse(this.rawProgramDateTime))
            }
            return this._programDateTime
          }
        }, {
          key: 'byteRange',
          get: function get () {
            if (!this._byteRange) {
              var byteRange = this._byteRange = []
              if (this.rawByteRange) {
                var params = this.rawByteRange.split('@', 2)
                if (params.length === 1) {
                  var lastByteRangeEndOffset = this.lastByteRangeEndOffset
                  byteRange[0] = lastByteRangeEndOffset || 0
                } else {
                  byteRange[0] = parseInt(params[1])
                }
                byteRange[1] = parseInt(params[0]) + byteRange[0]
              }
            }
            return this._byteRange
          }
        }, {
          key: 'byteRangeStartOffset',
          get: function get () {
            return this.byteRange[0]
          }
        }, {
          key: 'byteRangeEndOffset',
          get: function get () {
            return this.byteRange[1]
          }
        }, {
          key: 'decryptdata',
          get: function get () {
            if (!this._decryptdata) {
              this._decryptdata = this.fragmentDecryptdataFromLevelkey(this.levelkey, this.sn)
            }
            return this._decryptdata
          }
        }])

        return Fragment
      }())

      var PlaylistLoader = (function (_EventHandler) {
        _inherits(PlaylistLoader, _EventHandler)

        function PlaylistLoader (hls) {
          _classCallCheck(this, PlaylistLoader)

          var _this = _possibleConstructorReturn(this, (PlaylistLoader.__proto__ || Object.getPrototypeOf(PlaylistLoader)).call(this, hls, _events2.default.MANIFEST_LOADING, _events2.default.LEVEL_LOADING, _events2.default.AUDIO_TRACK_LOADING, _events2.default.SUBTITLE_TRACK_LOADING))

          _this.loaders = {}
          return _this
        }

        _createClass(PlaylistLoader, [{
          key: 'destroy',
          value: function destroy () {
            for (var loaderName in this.loaders) {
              var loader = this.loaders[loaderName]
              if (loader) {
                loader.destroy()
              }
            }
            this.loaders = {}
            _eventHandler2.default.prototype.destroy.call(this)
          }
        }, {
          key: 'onManifestLoading',
          value: function onManifestLoading (data) {
            this.load(data.url, { type: 'manifest' })
          }
        }, {
          key: 'onLevelLoading',
          value: function onLevelLoading (data) {
            this.load(data.url, { type: 'level', level: data.level, id: data.id })
          }
        }, {
          key: 'onAudioTrackLoading',
          value: function onAudioTrackLoading (data) {
            this.load(data.url, { type: 'audioTrack', id: data.id })
          }
        }, {
          key: 'onSubtitleTrackLoading',
          value: function onSubtitleTrackLoading (data) {
            this.load(data.url, { type: 'subtitleTrack', id: data.id })
          }
        }, {
          key: 'load',
          value: function load (url, context) {
            var loader = this.loaders[context.type]
            if (loader) {
              var loaderContext = loader.context
              if (loaderContext && loaderContext.url === url) {
                _logger.logger.trace('playlist request ongoing')
                return
              } else {
                _logger.logger.warn('abort previous loader for type:' + context.type)
                loader.abort()
              }
            }
            var config = this.hls.config
            var retry = void 0
            var timeout = void 0
            var retryDelay = void 0
            var maxRetryDelay = void 0
            if (context.type === 'manifest') {
              retry = config.manifestLoadingMaxRetry
              timeout = config.manifestLoadingTimeOut
              retryDelay = config.manifestLoadingRetryDelay
              maxRetryDelay = config.manifestLoadingMaxRetryTimeout
            } else {
              retry = config.levelLoadingMaxRetry
              timeout = config.levelLoadingTimeOut
              retryDelay = config.levelLoadingRetryDelay
              maxRetryDelay = config.levelLoadingMaxRetryTimeout
              _logger.logger.log('loading playlist for ' + context.type + ' ' + (context.level || context.id))
            }
            loader = this.loaders[context.type] = context.loader = typeof config.pLoader !== 'undefined' ? new config.pLoader(config) : new config.loader(config)
            context.url = url
            context.responseType = ''

            var loaderConfig = void 0
            var loaderCallbacks = void 0
            loaderConfig = { timeout: timeout, maxRetry: retry, retryDelay: retryDelay, maxRetryDelay: maxRetryDelay }
            loaderCallbacks = { onSuccess: this.loadsuccess.bind(this), onError: this.loaderror.bind(this), onTimeout: this.loadtimeout.bind(this) }
            loader.load(context, loaderConfig, loaderCallbacks)
          }
        }, {
          key: 'resolve',
          value: function resolve (url, baseUrl) {
            return _urlToolkit2.default.buildAbsoluteURL(baseUrl, url, { alwaysNormalize: true })
          }
        }, {
          key: 'parseMasterPlaylist',
          value: function parseMasterPlaylist (string, baseurl) {
            var levels = []
            var result = void 0
            MASTER_PLAYLIST_REGEX.lastIndex = 0
            while ((result = MASTER_PLAYLIST_REGEX.exec(string)) != null) {
              var level = {}

              var attrs = level.attrs = new _attrList2.default(result[1])
              level.url = this.resolve(result[2], baseurl)

              var resolution = attrs.decimalResolution('RESOLUTION')
              if (resolution) {
                level.width = resolution.width
                level.height = resolution.height
              }
              level.bitrate = attrs.decimalInteger('AVERAGE-BANDWIDTH') || attrs.decimalInteger('BANDWIDTH')
              level.name = attrs.NAME

              var codecs = attrs.CODECS
              if (codecs) {
                codecs = codecs.split(/[ ,]+/)
                for (var i = 0; i < codecs.length; i++) {
                  var codec = codecs[i]
                  if (codec.indexOf('avc1') !== -1) {
                    level.videoCodec = this.avc1toavcoti(codec)
                  } else {
                    level.audioCodec = codec
                  }
                }
              }

              levels.push(level)
            }
            return levels
          }
        }, {
          key: 'parseMasterPlaylistMedia',
          value: function parseMasterPlaylistMedia (string, baseurl, type) {
            var result = void 0
            var medias = []
            var id = 0
            MASTER_PLAYLIST_MEDIA_REGEX.lastIndex = 0
            while ((result = MASTER_PLAYLIST_MEDIA_REGEX.exec(string)) != null) {
              var media = {}
              var attrs = new _attrList2.default(result[1])
              if (attrs.TYPE === type) {
                media.groupId = attrs['GROUP-ID']
                media.name = attrs.NAME
                media.type = type
                media.default = attrs.DEFAULT === 'YES'
                media.autoselect = attrs.AUTOSELECT === 'YES'
                media.forced = attrs.FORCED === 'YES'
                if (attrs.URI) {
                  media.url = this.resolve(attrs.URI, baseurl)
                }
                media.lang = attrs.LANGUAGE
                if (!media.name) {
                  media.name = media.lang
                }
                media.id = id++
                medias.push(media)
              }
            }
            return medias
          }
        }, {
          key: 'avc1toavcoti',
          value: function avc1toavcoti (codec) {
            var result
            var avcdata = codec.split('.')
            if (avcdata.length > 2) {
              result = avcdata.shift() + '.'
              result += parseInt(avcdata.shift()).toString(16)
              result += ('000' + parseInt(avcdata.shift()).toString(16)).substr(-4)
            } else {
              result = codec
            }
            return result
          }
        }, {
          key: 'parseLevelPlaylist',
          value: function parseLevelPlaylist (string, baseurl, id, type) {
            var currentSN = 0
            var totalduration = 0
            var level = { type: null, version: null, url: baseurl, fragments: [], live: true, startSN: 0 }
            var levelkey = new LevelKey()
            var cc = 0
            var prevFrag = null
            var frag = new Fragment()
            var result
            var i

            LEVEL_PLAYLIST_REGEX_FAST.lastIndex = 0

            while ((result = LEVEL_PLAYLIST_REGEX_FAST.exec(string)) !== null) {
              var duration = result[1]
              if (duration) {
              // INF
                frag.duration = parseFloat(duration)
                // avoid sliced strings    https://github.com/video-dev/hls.js/issues/939
                var title = (' ' + result[2]).slice(1)
                frag.title = title || null
                frag.tagList.push(title ? ['INF', duration, title] : ['INF', duration])
              } else if (result[3]) {
              // url
                if (!isNaN(frag.duration)) {
                  var sn = currentSN++
                  frag.type = type
                  frag.start = totalduration
                  frag.levelkey = levelkey
                  frag.sn = sn
                  frag.level = id
                  frag.cc = cc
                  frag.baseurl = baseurl
                  // avoid sliced strings    https://github.com/video-dev/hls.js/issues/939
                  frag.relurl = (' ' + result[3]).slice(1)

                  level.fragments.push(frag)
                  prevFrag = frag
                  totalduration += frag.duration

                  frag = new Fragment()
                }
              } else if (result[4]) {
              // X-BYTERANGE
                frag.rawByteRange = (' ' + result[4]).slice(1)
                if (prevFrag) {
                  var lastByteRangeEndOffset = prevFrag.byteRangeEndOffset
                  if (lastByteRangeEndOffset) {
                    frag.lastByteRangeEndOffset = lastByteRangeEndOffset
                  }
                }
              } else if (result[5]) {
              // PROGRAM-DATE-TIME
              // avoid sliced strings    https://github.com/video-dev/hls.js/issues/939
                frag.rawProgramDateTime = (' ' + result[5]).slice(1)
                frag.tagList.push(['PROGRAM-DATE-TIME', frag.rawProgramDateTime])
              } else {
                result = result[0].match(LEVEL_PLAYLIST_REGEX_SLOW)
                for (i = 1; i < result.length; i++) {
                  if (result[i] !== undefined) {
                    break
                  }
                }

                // avoid sliced strings    https://github.com/video-dev/hls.js/issues/939
                var value1 = (' ' + result[i + 1]).slice(1)
                var value2 = (' ' + result[i + 2]).slice(1)

                switch (result[i]) {
                  case '#':
                    frag.tagList.push(value2 ? [value1, value2] : [value1])
                    break
                  case 'PLAYLIST-TYPE':
                    level.type = value1.toUpperCase()
                    break
                  case 'MEDIA-SEQUENCE':
                    currentSN = level.startSN = parseInt(value1)
                    break
                  case 'TARGETDURATION':
                    level.targetduration = parseFloat(value1)
                    break
                  case 'VERSION':
                    level.version = parseInt(value1)
                    break
                  case 'EXTM3U':
                    break
                  case 'ENDLIST':
                    level.live = false
                    break
                  case 'DIS':
                    cc++
                    frag.tagList.push(['DIS'])
                    break
                  case 'DISCONTINUITY-SEQ':
                    cc = parseInt(value1)
                    break
                  case 'KEY':
                  // https://tools.ietf.org/html/draft-pantos-http-live-streaming-08#section-3.4.4
                    var decryptparams = value1
                    var keyAttrs = new _attrList2.default(decryptparams)
                    var decryptmethod = keyAttrs.enumeratedString('METHOD')
                    var decrypturi = keyAttrs.URI
                    var decryptiv = keyAttrs.hexadecimalInteger('IV')
                    if (decryptmethod) {
                      levelkey = new LevelKey()
                      if (decrypturi && ['AES-128', 'SAMPLE-AES'].indexOf(decryptmethod) >= 0) {
                        levelkey.method = decryptmethod
                        // URI to get the key
                        levelkey.baseuri = baseurl
                        levelkey.reluri = decrypturi
                        levelkey.key = null
                        // Initialization Vector (IV)
                        levelkey.iv = decryptiv
                      }
                    }
                    break
                  case 'START':
                    var startParams = value1
                    var startAttrs = new _attrList2.default(startParams)
                    var startTimeOffset = startAttrs.decimalFloatingPoint('TIME-OFFSET')
                    // TIME-OFFSET can be 0
                    if (!isNaN(startTimeOffset)) {
                      level.startTimeOffset = startTimeOffset
                    }
                    break
                  case 'MAP':
                    var mapAttrs = new _attrList2.default(value1)
                    frag.relurl = mapAttrs.URI
                    frag.rawByteRange = mapAttrs.BYTERANGE
                    frag.baseurl = baseurl
                    frag.level = id
                    frag.type = type
                    frag.sn = 'initSegment'
                    level.initSegment = frag
                    frag = new Fragment()
                    break
                  default:
                    _logger.logger.warn('line parsed but not handled: ' + result)
                    break
                }
              }
            }
            frag = prevFrag
            // logger.log('found ' + level.fragments.length + ' fragments');
            if (frag && !frag.relurl) {
              level.fragments.pop()
              totalduration -= frag.duration
            }
            level.totalduration = totalduration
            level.averagetargetduration = totalduration / level.fragments.length
            level.endSN = currentSN - 1
            return level
          }
        }, {
          key: 'loadsuccess',
          value: function loadsuccess (response, stats, context) {
            var string = response.data
            var url = response.url
            var type = context.type
            var id = context.id
            var level = context.level
            var hls = this.hls

            this.loaders[type] = undefined
            // responseURL not supported on some browsers (it is used to detect URL redirection)
            // data-uri mode also not supported (but no need to detect redirection)
            if (url === undefined || url.indexOf('data:') === 0) {
            // fallback to initial URL
              url = context.url
            }
            stats.tload = performance.now()
            // stats.mtime = new Date(target.getResponseHeader('Last-Modified'));
            if (string.indexOf('#EXTM3U') === 0) {
              if (string.indexOf('#EXTINF:') > 0) {
                var isLevel = type !== 'audioTrack' && type !== 'subtitleTrack'
                var levelId = !isNaN(level) ? level : !isNaN(id) ? id : 0
                var levelDetails = this.parseLevelPlaylist(string, url, levelId, type === 'audioTrack' ? 'audio' : type === 'subtitleTrack' ? 'subtitle' : 'main')
                levelDetails.tload = stats.tload
                if (type === 'manifest') {
                // first request, stream manifest (no master playlist), fire manifest loaded event with level details
                  hls.trigger(_events2.default.MANIFEST_LOADED, { levels: [{ url: url, details: levelDetails }], audioTracks: [], url: url, stats: stats })
                }
                stats.tparsed = performance.now()
                if (levelDetails.targetduration) {
                  if (isLevel) {
                    hls.trigger(_events2.default.LEVEL_LOADED, { details: levelDetails, level: level || 0, id: id || 0, stats: stats })
                  } else {
                    if (type === 'audioTrack') {
                      hls.trigger(_events2.default.AUDIO_TRACK_LOADED, { details: levelDetails, id: id, stats: stats })
                    } else if (type === 'subtitleTrack') {
                      hls.trigger(_events2.default.SUBTITLE_TRACK_LOADED, { details: levelDetails, id: id, stats: stats })
                    }
                  }
                } else {
                  hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.NETWORK_ERROR, details: _errors.ErrorDetails.MANIFEST_PARSING_ERROR, fatal: true, url: url, reason: 'invalid targetduration' })
                }
              } else {
                var levels = this.parseMasterPlaylist(string, url)
                // multi level playlist, parse level info
                if (levels.length) {
                  var audioTracks = this.parseMasterPlaylistMedia(string, url, 'AUDIO')
                  var subtitles = this.parseMasterPlaylistMedia(string, url, 'SUBTITLES')
                  if (audioTracks.length) {
                  // check if we have found an audio track embedded in main playlist (audio track without URI attribute)
                    var embeddedAudioFound = false
                    audioTracks.forEach(function (audioTrack) {
                      if (!audioTrack.url) {
                        embeddedAudioFound = true
                      }
                    })
                    // if no embedded audio track defined, but audio codec signaled in quality level, we need to signal this main audio track
                    // this could happen with playlists with alt audio rendition in which quality levels (main) contains both audio+video. but with mixed audio track not signaled
                    if (embeddedAudioFound === false && levels[0].audioCodec && !levels[0].attrs.AUDIO) {
                      _logger.logger.log('audio codec signaled in quality level, but no embedded audio track signaled, create one')
                      audioTracks.unshift({ type: 'main', name: 'main' })
                    }
                  }
                  hls.trigger(_events2.default.MANIFEST_LOADED, { levels: levels, audioTracks: audioTracks, subtitles: subtitles, url: url, stats: stats })
                } else {
                  hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.NETWORK_ERROR, details: _errors.ErrorDetails.MANIFEST_PARSING_ERROR, fatal: true, url: url, reason: 'no level found in manifest' })
                }
              }
            } else {
              hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.NETWORK_ERROR, details: _errors.ErrorDetails.MANIFEST_PARSING_ERROR, fatal: true, url: url, reason: 'no EXTM3U delimiter' })
            }
          }
        }, {
          key: 'loaderror',
          value: function loaderror (response, context) {
            var details
            var fatal
            var loader = context.loader
            switch (context.type) {
              case 'manifest':
                details = _errors.ErrorDetails.MANIFEST_LOAD_ERROR
                fatal = true
                break
              case 'level':
                details = _errors.ErrorDetails.LEVEL_LOAD_ERROR
                fatal = false
                break
              case 'audioTrack':
                details = _errors.ErrorDetails.AUDIO_TRACK_LOAD_ERROR
                fatal = false
                break
            }
            if (loader) {
              loader.abort()
              this.loaders[context.type] = undefined
            }
            this.hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.NETWORK_ERROR, details: details, fatal: fatal, url: loader.url, loader: loader, response: response, context: context })
          }
        }, {
          key: 'loadtimeout',
          value: function loadtimeout (stats, context) {
            var details
            var fatal
            var loader = context.loader
            switch (context.type) {
              case 'manifest':
                details = _errors.ErrorDetails.MANIFEST_LOAD_TIMEOUT
                fatal = true
                break
              case 'level':
                details = _errors.ErrorDetails.LEVEL_LOAD_TIMEOUT
                fatal = false
                break
              case 'audioTrack':
                details = _errors.ErrorDetails.AUDIO_TRACK_LOAD_TIMEOUT
                fatal = false
                break
            }
            if (loader) {
              loader.abort()
              this.loaders[context.type] = undefined
            }
            this.hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.NETWORK_ERROR, details: details, fatal: fatal, url: loader.url, loader: loader, context: context })
          }
        }])

        return PlaylistLoader
      }(_eventHandler2.default))

      exports.default = PlaylistLoader
    }, { 2: 2, 30: 30, 31: 31, 32: 32, 44: 44, 50: 50 }],
    41: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      /**
 * Generate MP4 Box
*/

      // import Hex from '../utils/hex';

      var UINT32_MAX = Math.pow(2, 32) - 1

      var MP4 = (function () {
        function MP4 () {
          _classCallCheck(this, MP4)
        }

        _createClass(MP4, null, [{
          key: 'init',
          value: function init () {
            MP4.types = {
              avc1: [], // codingname
              avcC: [],
              btrt: [],
              dinf: [],
              dref: [],
              esds: [],
              ftyp: [],
              hdlr: [],
              mdat: [],
              mdhd: [],
              mdia: [],
              mfhd: [],
              minf: [],
              moof: [],
              moov: [],
              mp4a: [],
              '.mp3': [],
              mvex: [],
              mvhd: [],
              pasp: [],
              sdtp: [],
              stbl: [],
              stco: [],
              stsc: [],
              stsd: [],
              stsz: [],
              stts: [],
              tfdt: [],
              tfhd: [],
              traf: [],
              trak: [],
              trun: [],
              trex: [],
              tkhd: [],
              vmhd: [],
              smhd: []
            }

            var i
            for (i in MP4.types) {
              if (MP4.types.hasOwnProperty(i)) {
                MP4.types[i] = [i.charCodeAt(0), i.charCodeAt(1), i.charCodeAt(2), i.charCodeAt(3)]
              }
            }

            var videoHdlr = new Uint8Array([0x00, // version 0
              0x00, 0x00, 0x00, // flags
              0x00, 0x00, 0x00, 0x00, // pre_defined
              0x76, 0x69, 0x64, 0x65, // handler_type: 'vide'
              0x00, 0x00, 0x00, 0x00, // reserved
              0x00, 0x00, 0x00, 0x00, // reserved
              0x00, 0x00, 0x00, 0x00, // reserved
              0x56, 0x69, 0x64, 0x65, 0x6f, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'VideoHandler'
            ])

            var audioHdlr = new Uint8Array([0x00, // version 0
              0x00, 0x00, 0x00, // flags
              0x00, 0x00, 0x00, 0x00, // pre_defined
              0x73, 0x6f, 0x75, 0x6e, // handler_type: 'soun'
              0x00, 0x00, 0x00, 0x00, // reserved
              0x00, 0x00, 0x00, 0x00, // reserved
              0x00, 0x00, 0x00, 0x00, // reserved
              0x53, 0x6f, 0x75, 0x6e, 0x64, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'SoundHandler'
            ])

            MP4.HDLR_TYPES = {
              video: videoHdlr,
              audio: audioHdlr
            }

            var dref = new Uint8Array([0x00, // version 0
              0x00, 0x00, 0x00, // flags
              0x00, 0x00, 0x00, 0x01, // entry_count
              0x00, 0x00, 0x00, 0x0c, // entry_size
              0x75, 0x72, 0x6c, 0x20, // 'url' type
              0x00, // version 0
              0x00, 0x00, 0x01 // entry_flags
            ])

            var stco = new Uint8Array([0x00, // version
              0x00, 0x00, 0x00, // flags
              0x00, 0x00, 0x00, 0x00 // entry_count
            ])

            MP4.STTS = MP4.STSC = MP4.STCO = stco

            MP4.STSZ = new Uint8Array([0x00, // version
              0x00, 0x00, 0x00, // flags
              0x00, 0x00, 0x00, 0x00, // sample_size
              0x00, 0x00, 0x00, 0x00])
            MP4.VMHD = new Uint8Array([0x00, // version
              0x00, 0x00, 0x01, // flags
              0x00, 0x00, // graphicsmode
              0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // opcolor
            ])
            MP4.SMHD = new Uint8Array([0x00, // version
              0x00, 0x00, 0x00, // flags
              0x00, 0x00, // balance
              0x00, 0x00 // reserved
            ])

            MP4.STSD = new Uint8Array([0x00, // version 0
              0x00, 0x00, 0x00, // flags
              0x00, 0x00, 0x00, 0x01]) // entry_count

            var majorBrand = new Uint8Array([105, 115, 111, 109]) // isom
            var avc1Brand = new Uint8Array([97, 118, 99, 49]) // avc1
            var minorVersion = new Uint8Array([0, 0, 0, 1])

            MP4.FTYP = MP4.box(MP4.types.ftyp, majorBrand, minorVersion, majorBrand, avc1Brand)
            MP4.DINF = MP4.box(MP4.types.dinf, MP4.box(MP4.types.dref, dref))
          }
        }, {
          key: 'box',
          value: function box (type) {
            var payload = Array.prototype.slice.call(arguments, 1)
            var size = 8
            var i = payload.length
            var len = i
            var result
            // calculate the total size we need to allocate
            while (i--) {
              size += payload[i].byteLength
            }
            result = new Uint8Array(size)
            result[0] = size >> 24 & 0xff
            result[1] = size >> 16 & 0xff
            result[2] = size >> 8 & 0xff
            result[3] = size & 0xff
            result.set(type, 4)
            // copy the payload into the result
            for (i = 0, size = 8; i < len; i++) {
            // copy payload[i] array @ offset size
              result.set(payload[i], size)
              size += payload[i].byteLength
            }
            return result
          }
        }, {
          key: 'hdlr',
          value: function hdlr (type) {
            return MP4.box(MP4.types.hdlr, MP4.HDLR_TYPES[type])
          }
        }, {
          key: 'mdat',
          value: function mdat (data) {
            return MP4.box(MP4.types.mdat, data)
          }
        }, {
          key: 'mdhd',
          value: function mdhd (timescale, duration) {
            duration *= timescale
            var upperWordDuration = Math.floor(duration / (UINT32_MAX + 1))
            var lowerWordDuration = Math.floor(duration % (UINT32_MAX + 1))
            return MP4.box(MP4.types.mdhd, new Uint8Array([0x01, // version 1
              0x00, 0x00, 0x00, // flags
              0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, // creation_time
              0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, // modification_time
              timescale >> 24 & 0xFF, timescale >> 16 & 0xFF, timescale >> 8 & 0xFF, timescale & 0xFF, // timescale
              upperWordDuration >> 24, upperWordDuration >> 16 & 0xFF, upperWordDuration >> 8 & 0xFF, upperWordDuration & 0xFF, lowerWordDuration >> 24, lowerWordDuration >> 16 & 0xFF, lowerWordDuration >> 8 & 0xFF, lowerWordDuration & 0xFF, 0x55, 0xc4, // 'und' language (undetermined)
              0x00, 0x00]))
          }
        }, {
          key: 'mdia',
          value: function mdia (track) {
            return MP4.box(MP4.types.mdia, MP4.mdhd(track.timescale, track.duration), MP4.hdlr(track.type), MP4.minf(track))
          }
        }, {
          key: 'mfhd',
          value: function mfhd (sequenceNumber) {
            return MP4.box(MP4.types.mfhd, new Uint8Array([0x00, 0x00, 0x00, 0x00, // flags
              sequenceNumber >> 24, sequenceNumber >> 16 & 0xFF, sequenceNumber >> 8 & 0xFF, sequenceNumber & 0xFF]))
          }
        }, {
          key: 'minf',
          value: function minf (track) {
            if (track.type === 'audio') {
              return MP4.box(MP4.types.minf, MP4.box(MP4.types.smhd, MP4.SMHD), MP4.DINF, MP4.stbl(track))
            } else {
              return MP4.box(MP4.types.minf, MP4.box(MP4.types.vmhd, MP4.VMHD), MP4.DINF, MP4.stbl(track))
            }
          }
        }, {
          key: 'moof',
          value: function moof (sn, baseMediaDecodeTime, track) {
            return MP4.box(MP4.types.moof, MP4.mfhd(sn), MP4.traf(track, baseMediaDecodeTime))
          }
          /**
     * @param tracks... (optional) {array} the tracks associated with this movie
     */

        }, {
          key: 'moov',
          value: function moov (tracks) {
            var i = tracks.length
            var boxes = []

            while (i--) {
              boxes[i] = MP4.trak(tracks[i])
            }

            return MP4.box.apply(null, [MP4.types.moov, MP4.mvhd(tracks[0].timescale, tracks[0].duration)].concat(boxes).concat(MP4.mvex(tracks)))
          }
        }, {
          key: 'mvex',
          value: function mvex (tracks) {
            var i = tracks.length
            var boxes = []

            while (i--) {
              boxes[i] = MP4.trex(tracks[i])
            }
            return MP4.box.apply(null, [MP4.types.mvex].concat(boxes))
          }
        }, {
          key: 'mvhd',
          value: function mvhd (timescale, duration) {
            duration *= timescale
            var upperWordDuration = Math.floor(duration / (UINT32_MAX + 1))
            var lowerWordDuration = Math.floor(duration % (UINT32_MAX + 1))
            var bytes = new Uint8Array([0x01, // version 1
              0x00, 0x00, 0x00, // flags
              0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, // creation_time
              0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, // modification_time
              timescale >> 24 & 0xFF, timescale >> 16 & 0xFF, timescale >> 8 & 0xFF, timescale & 0xFF, // timescale
              upperWordDuration >> 24, upperWordDuration >> 16 & 0xFF, upperWordDuration >> 8 & 0xFF, upperWordDuration & 0xFF, lowerWordDuration >> 24, lowerWordDuration >> 16 & 0xFF, lowerWordDuration >> 8 & 0xFF, lowerWordDuration & 0xFF, 0x00, 0x01, 0x00, 0x00, // 1.0 rate
              0x01, 0x00, // 1.0 volume
              0x00, 0x00, // reserved
              0x00, 0x00, 0x00, 0x00, // reserved
              0x00, 0x00, 0x00, 0x00, // reserved
              0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
              0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
              0xff, 0xff, 0xff, 0xff // next_track_ID
            ])
            return MP4.box(MP4.types.mvhd, bytes)
          }
        }, {
          key: 'sdtp',
          value: function sdtp (track) {
            var samples = track.samples || []
            var bytes = new Uint8Array(4 + samples.length)
            var flags
            var i
            // leave the full box header (4 bytes) all zero
            // write the sample table
            for (i = 0; i < samples.length; i++) {
              flags = samples[i].flags
              bytes[i + 4] = flags.dependsOn << 4 | flags.isDependedOn << 2 | flags.hasRedundancy
            }

            return MP4.box(MP4.types.sdtp, bytes)
          }
        }, {
          key: 'stbl',
          value: function stbl (track) {
            return MP4.box(MP4.types.stbl, MP4.stsd(track), MP4.box(MP4.types.stts, MP4.STTS), MP4.box(MP4.types.stsc, MP4.STSC), MP4.box(MP4.types.stsz, MP4.STSZ), MP4.box(MP4.types.stco, MP4.STCO))
          }
        }, {
          key: 'avc1',
          value: function avc1 (track) {
            var sps = []
            var pps = []
            var i
            var data
            var len
            // assemble the SPSs

            for (i = 0; i < track.sps.length; i++) {
              data = track.sps[i]
              len = data.byteLength
              sps.push(len >>> 8 & 0xFF)
              sps.push(len & 0xFF)
              sps = sps.concat(Array.prototype.slice.call(data)) // SPS
            }

            // assemble the PPSs
            for (i = 0; i < track.pps.length; i++) {
              data = track.pps[i]
              len = data.byteLength
              pps.push(len >>> 8 & 0xFF)
              pps.push(len & 0xFF)
              pps = pps.concat(Array.prototype.slice.call(data))
            }

            var avcc = MP4.box(MP4.types.avcC, new Uint8Array([0x01, // version
              sps[3], // profile
              sps[4], // profile compat
              sps[5], // level
              0xfc | 3, // lengthSizeMinusOne, hard-coded to 4 bytes
              0xE0 | track.sps.length // 3bit reserved (111) + numOfSequenceParameterSets
            ].concat(sps).concat([track.pps.length // numOfPictureParameterSets
            ]).concat(pps)))
            // "PPS"
            var width = track.width
            var height = track.height
            var hSpacing = track.pixelRatio[0]
            var vSpacing = track.pixelRatio[1]
            // console.log('avcc:' + Hex.hexDump(avcc));
            return MP4.box(MP4.types.avc1, new Uint8Array([0x00, 0x00, 0x00, // reserved
              0x00, 0x00, 0x00, // reserved
              0x00, 0x01, // data_reference_index
              0x00, 0x00, // pre_defined
              0x00, 0x00, // reserved
              0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
              width >> 8 & 0xFF, width & 0xff, // width
              height >> 8 & 0xFF, height & 0xff, // height
              0x00, 0x48, 0x00, 0x00, // horizresolution
              0x00, 0x48, 0x00, 0x00, // vertresolution
              0x00, 0x00, 0x00, 0x00, // reserved
              0x00, 0x01, // frame_count
              0x12, 0x64, 0x61, 0x69, 0x6C, // dailymotion/hls.js
              0x79, 0x6D, 0x6F, 0x74, 0x69, 0x6F, 0x6E, 0x2F, 0x68, 0x6C, 0x73, 0x2E, 0x6A, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // compressorname
              0x00, 0x18, // depth = 24
              0x11, 0x11]), // pre_defined = -1
            avcc, MP4.box(MP4.types.btrt, new Uint8Array([0x00, 0x1c, 0x9c, 0x80, // bufferSizeDB
              0x00, 0x2d, 0xc6, 0xc0, // maxBitrate
              0x00, 0x2d, 0xc6, 0xc0])), // avgBitrate
            MP4.box(MP4.types.pasp, new Uint8Array([hSpacing >> 24, // hSpacing
              hSpacing >> 16 & 0xFF, hSpacing >> 8 & 0xFF, hSpacing & 0xFF, vSpacing >> 24, // vSpacing
              vSpacing >> 16 & 0xFF, vSpacing >> 8 & 0xFF, vSpacing & 0xFF])))
          }
        }, {
          key: 'esds',
          value: function esds (track) {
            var configlen = track.config.length
            return new Uint8Array([0x00, // version 0
              0x00, 0x00, 0x00, // flags

              0x03, // descriptor_type
              0x17 + configlen, // length
              0x00, 0x01, // es_id
              0x00, // stream_priority

              0x04, // descriptor_type
              0x0f + configlen, // length
              0x40, // codec : mpeg4_audio
              0x15, // stream_type
              0x00, 0x00, 0x00, // buffer_size
              0x00, 0x00, 0x00, 0x00, // maxBitrate
              0x00, 0x00, 0x00, 0x00, // avgBitrate

              0x05 // descriptor_type
            ].concat([configlen]).concat(track.config).concat([0x06, 0x01, 0x02])) // GASpecificConfig)); // length + audio config descriptor
          }
        }, {
          key: 'mp4a',
          value: function mp4a (track) {
            var samplerate = track.samplerate
            return MP4.box(MP4.types.mp4a, new Uint8Array([0x00, 0x00, 0x00, // reserved
              0x00, 0x00, 0x00, // reserved
              0x00, 0x01, // data_reference_index
              0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
              0x00, track.channelCount, // channelcount
              0x00, 0x10, // sampleSize:16bits
              0x00, 0x00, 0x00, 0x00, // reserved2
              samplerate >> 8 & 0xFF, samplerate & 0xff, //
              0x00, 0x00]), MP4.box(MP4.types.esds, MP4.esds(track)))
          }
        }, {
          key: 'mp3',
          value: function mp3 (track) {
            var samplerate = track.samplerate
            return MP4.box(MP4.types['.mp3'], new Uint8Array([0x00, 0x00, 0x00, // reserved
              0x00, 0x00, 0x00, // reserved
              0x00, 0x01, // data_reference_index
              0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
              0x00, track.channelCount, // channelcount
              0x00, 0x10, // sampleSize:16bits
              0x00, 0x00, 0x00, 0x00, // reserved2
              samplerate >> 8 & 0xFF, samplerate & 0xff, //
              0x00, 0x00]))
          }
        }, {
          key: 'stsd',
          value: function stsd (track) {
            if (track.type === 'audio') {
              if (!track.isAAC && track.codec === 'mp3') {
                return MP4.box(MP4.types.stsd, MP4.STSD, MP4.mp3(track))
              }
              return MP4.box(MP4.types.stsd, MP4.STSD, MP4.mp4a(track))
            } else {
              return MP4.box(MP4.types.stsd, MP4.STSD, MP4.avc1(track))
            }
          }
        }, {
          key: 'tkhd',
          value: function tkhd (track) {
            var id = track.id
            var duration = track.duration * track.timescale
            var width = track.width
            var height = track.height
            var upperWordDuration = Math.floor(duration / (UINT32_MAX + 1))
            var lowerWordDuration = Math.floor(duration % (UINT32_MAX + 1))
            return MP4.box(MP4.types.tkhd, new Uint8Array([0x01, // version 1
              0x00, 0x00, 0x07, // flags
              0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, // creation_time
              0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, // modification_time
              id >> 24 & 0xFF, id >> 16 & 0xFF, id >> 8 & 0xFF, id & 0xFF, // track_ID
              0x00, 0x00, 0x00, 0x00, // reserved
              upperWordDuration >> 24, upperWordDuration >> 16 & 0xFF, upperWordDuration >> 8 & 0xFF, upperWordDuration & 0xFF, lowerWordDuration >> 24, lowerWordDuration >> 16 & 0xFF, lowerWordDuration >> 8 & 0xFF, lowerWordDuration & 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
              0x00, 0x00, // layer
              0x00, 0x00, // alternate_group
              0x00, 0x00, // non-audio track volume
              0x00, 0x00, // reserved
              0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
              width >> 8 & 0xFF, width & 0xFF, 0x00, 0x00, // width
              height >> 8 & 0xFF, height & 0xFF, 0x00, 0x00 // height
            ]))
          }
        }, {
          key: 'traf',
          value: function traf (track, baseMediaDecodeTime) {
            var sampleDependencyTable = MP4.sdtp(track)
            var id = track.id
            var upperWordBaseMediaDecodeTime = Math.floor(baseMediaDecodeTime / (UINT32_MAX + 1))
            var lowerWordBaseMediaDecodeTime = Math.floor(baseMediaDecodeTime % (UINT32_MAX + 1))
            return MP4.box(MP4.types.traf, MP4.box(MP4.types.tfhd, new Uint8Array([0x00, // version 0
              0x00, 0x00, 0x00, // flags
              id >> 24, id >> 16 & 0XFF, id >> 8 & 0XFF, id & 0xFF])), MP4.box(MP4.types.tfdt, new Uint8Array([0x01, // version 1
              0x00, 0x00, 0x00, // flags
              upperWordBaseMediaDecodeTime >> 24, upperWordBaseMediaDecodeTime >> 16 & 0XFF, upperWordBaseMediaDecodeTime >> 8 & 0XFF, upperWordBaseMediaDecodeTime & 0xFF, lowerWordBaseMediaDecodeTime >> 24, lowerWordBaseMediaDecodeTime >> 16 & 0XFF, lowerWordBaseMediaDecodeTime >> 8 & 0XFF, lowerWordBaseMediaDecodeTime & 0xFF])), MP4.trun(track, sampleDependencyTable.length + 16 + // tfhd
      20 + // tfdt
      8 + // traf header
      16 + // mfhd
      8 + // moof header
      8), // mdat header
            sampleDependencyTable)
          }

          /**
     * Generate a track box.
     * @param track {object} a track definition
     * @return {Uint8Array} the track box
     */

        }, {
          key: 'trak',
          value: function trak (track) {
            track.duration = track.duration || 0xffffffff
            return MP4.box(MP4.types.trak, MP4.tkhd(track), MP4.mdia(track))
          }
        }, {
          key: 'trex',
          value: function trex (track) {
            var id = track.id
            return MP4.box(MP4.types.trex, new Uint8Array([0x00, // version 0
              0x00, 0x00, 0x00, // flags
              id >> 24, id >> 16 & 0XFF, id >> 8 & 0XFF, id & 0xFF, // track_ID
              0x00, 0x00, 0x00, 0x01, // default_sample_description_index
              0x00, 0x00, 0x00, 0x00, // default_sample_duration
              0x00, 0x00, 0x00, 0x00, // default_sample_size
              0x00, 0x01, 0x00, 0x01 // default_sample_flags
            ]))
          }
        }, {
          key: 'trun',
          value: function trun (track, offset) {
            var samples = track.samples || []
            var len = samples.length
            var arraylen = 12 + 16 * len
            var array = new Uint8Array(arraylen)
            var i
            var sample
            var duration
            var size
            var flags
            var cts
            offset += 8 + arraylen
            array.set([0x00, // version 0
              0x00, 0x0f, 0x01, // flags
              len >>> 24 & 0xFF, len >>> 16 & 0xFF, len >>> 8 & 0xFF, len & 0xFF, // sample_count
              offset >>> 24 & 0xFF, offset >>> 16 & 0xFF, offset >>> 8 & 0xFF, offset & 0xFF // data_offset
            ], 0)
            for (i = 0; i < len; i++) {
              sample = samples[i]
              duration = sample.duration
              size = sample.size
              flags = sample.flags
              cts = sample.cts
              array.set([duration >>> 24 & 0xFF, duration >>> 16 & 0xFF, duration >>> 8 & 0xFF, duration & 0xFF, // sample_duration
                size >>> 24 & 0xFF, size >>> 16 & 0xFF, size >>> 8 & 0xFF, size & 0xFF, // sample_size
                flags.isLeading << 2 | flags.dependsOn, flags.isDependedOn << 6 | flags.hasRedundancy << 4 | flags.paddingValue << 1 | flags.isNonSync, flags.degradPrio & 0xF0 << 8, flags.degradPrio & 0x0F, // sample_flags
                cts >>> 24 & 0xFF, cts >>> 16 & 0xFF, cts >>> 8 & 0xFF, cts & 0xFF // sample_composition_time_offset
              ], 12 + 16 * i)
            }
            return MP4.box(MP4.types.trun, array)
          }
        }, {
          key: 'initSegment',
          value: function initSegment (tracks) {
            if (!MP4.types) {
              MP4.init()
            }
            var movie = MP4.moov(tracks)
            var result
            result = new Uint8Array(MP4.FTYP.byteLength + movie.byteLength)
            result.set(MP4.FTYP)
            result.set(movie, MP4.FTYP.byteLength)
            return result
          }
        }])

        return MP4
      }())

      exports.default = MP4
    }, {}],
    42: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }()) /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * fMP4 remuxer
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     */

      var _aac = _dereq_(33)

      var _aac2 = _interopRequireDefault(_aac)

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      var _logger = _dereq_(50)

      var _mp4Generator = _dereq_(41)

      var _mp4Generator2 = _interopRequireDefault(_mp4Generator)

      var _errors = _dereq_(30)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      var MP4Remuxer = (function () {
        function MP4Remuxer (observer, config, typeSupported, vendor) {
          _classCallCheck(this, MP4Remuxer)

          this.observer = observer
          this.config = config
          this.typeSupported = typeSupported
          var userAgent = navigator.userAgent
          this.isSafari = vendor && vendor.indexOf('Apple') > -1 && userAgent && !userAgent.match('CriOS')
          this.ISGenerated = false
        }

        _createClass(MP4Remuxer, [{
          key: 'destroy',
          value: function destroy () {}
        }, {
          key: 'resetTimeStamp',
          value: function resetTimeStamp (defaultTimeStamp) {
            this._initPTS = this._initDTS = defaultTimeStamp
          }
        }, {
          key: 'resetInitSegment',
          value: function resetInitSegment () {
            this.ISGenerated = false
          }
        }, {
          key: 'remux',
          value: function remux (audioTrack, videoTrack, id3Track, textTrack, timeOffset, contiguous, accurateTimeOffset) {
          // generate Init Segment if needed
            if (!this.ISGenerated) {
              this.generateIS(audioTrack, videoTrack, timeOffset)
            }

            if (this.ISGenerated) {
            // Purposefully remuxing audio before video, so that remuxVideo can use nextAudioPts, which is
            // calculated in remuxAudio.
            // logger.log('nb AAC samples:' + audioTrack.samples.length);
              if (audioTrack.samples.length) {
                var audioData = this.remuxAudio(audioTrack, timeOffset, contiguous, accurateTimeOffset)
                // logger.log('nb AVC samples:' + videoTrack.samples.length);
                if (videoTrack.samples.length) {
                  var audioTrackLength = void 0
                  if (audioData) {
                    audioTrackLength = audioData.endPTS - audioData.startPTS
                  }
                  this.remuxVideo(videoTrack, timeOffset, contiguous, audioTrackLength)
                }
              } else {
                var videoData = void 0
                // logger.log('nb AVC samples:' + videoTrack.samples.length);
                if (videoTrack.samples.length) {
                  videoData = this.remuxVideo(videoTrack, timeOffset, contiguous)
                }
                if (videoData && audioTrack.codec) {
                  this.remuxEmptyAudio(audioTrack, timeOffset, contiguous, videoData)
                }
              }
            }
            // logger.log('nb ID3 samples:' + audioTrack.samples.length);
            if (id3Track.samples.length) {
              this.remuxID3(id3Track, timeOffset)
            }
            // logger.log('nb ID3 samples:' + audioTrack.samples.length);
            if (textTrack.samples.length) {
              this.remuxText(textTrack, timeOffset)
            }
            // notify end of parsing
            this.observer.trigger(_events2.default.FRAG_PARSED)
          }
        }, {
          key: 'generateIS',
          value: function generateIS (audioTrack, videoTrack, timeOffset) {
            var observer = this.observer
            var audioSamples = audioTrack.samples
            var videoSamples = videoTrack.samples
            var typeSupported = this.typeSupported
            var container = 'audio/mp4'
            var tracks = {}
            var data = { tracks: tracks }
            var computePTSDTS = this._initPTS === undefined
            var initPTS
            var initDTS

            if (computePTSDTS) {
              initPTS = initDTS = Infinity
            }
            if (audioTrack.config && audioSamples.length) {
            // let's use audio sampling rate as MP4 time scale.
            // rationale is that there is a integer nb of audio frames per audio sample (1024 for AAC)
            // using audio sampling rate here helps having an integer MP4 frame duration
            // this avoids potential rounding issue and AV sync issue
              audioTrack.timescale = audioTrack.samplerate
              _logger.logger.log('audio sampling rate : ' + audioTrack.samplerate)
              if (!audioTrack.isAAC) {
                if (typeSupported.mpeg) {
                // Chrome and Safari
                  container = 'audio/mpeg'
                  audioTrack.codec = ''
                } else if (typeSupported.mp3) {
                // Firefox
                  audioTrack.codec = 'mp3'
                }
              }
              tracks.audio = {
                container: container,
                codec: audioTrack.codec,
                initSegment: !audioTrack.isAAC && typeSupported.mpeg ? new Uint8Array() : _mp4Generator2.default.initSegment([audioTrack]),
                metadata: {
                  channelCount: audioTrack.channelCount
                }
              }
              if (computePTSDTS) {
              // remember first PTS of this demuxing context. for audio, PTS = DTS
                initPTS = initDTS = audioSamples[0].pts - audioTrack.inputTimeScale * timeOffset
              }
            }

            if (videoTrack.sps && videoTrack.pps && videoSamples.length) {
            // let's use input time scale as MP4 video timescale
            // we use input time scale straight away to avoid rounding issues on frame duration / cts computation
              var inputTimeScale = videoTrack.inputTimeScale
              videoTrack.timescale = inputTimeScale
              tracks.video = {
                container: 'video/mp4',
                codec: videoTrack.codec,
                initSegment: _mp4Generator2.default.initSegment([videoTrack]),
                metadata: {
                  width: videoTrack.width,
                  height: videoTrack.height
                }
              }
              if (computePTSDTS) {
                initPTS = Math.min(initPTS, videoSamples[0].pts - inputTimeScale * timeOffset)
                initDTS = Math.min(initDTS, videoSamples[0].dts - inputTimeScale * timeOffset)
                this.observer.trigger(_events2.default.INIT_PTS_FOUND, { initPTS: initPTS })
              }
            }

            if (Object.keys(tracks).length) {
              observer.trigger(_events2.default.FRAG_PARSING_INIT_SEGMENT, data)
              this.ISGenerated = true
              if (computePTSDTS) {
                this._initPTS = initPTS
                this._initDTS = initDTS
              }
            } else {
              observer.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.FRAG_PARSING_ERROR, fatal: false, reason: 'no audio/video samples found' })
            }
          }
        }, {
          key: 'remuxVideo',
          value: function remuxVideo (track, timeOffset, contiguous, audioTrackLength) {
            var offset = 8
            var timeScale = track.timescale
            var mp4SampleDuration
            var mdat
            var moof
            var firstPTS
            var firstDTS
            var nextDTS
            var lastPTS
            var lastDTS
            var inputSamples = track.samples
            var outputSamples = []
            var nbSamples = inputSamples.length
            var ptsNormalize = this._PTSNormalize
            var initDTS = this._initDTS

            // for (let i = 0; i < track.samples.length; i++) {
            //   let avcSample = track.samples[i];
            //   let units = avcSample.units;
            //   let unitsString = '';
            //   for (let j = 0; j < units.length ; j++) {
            //     unitsString += units[j].type + ',';
            //     if (units[j].data.length < 500) {
            //       unitsString += Hex.hexDump(units[j].data);
            //     }
            //   }
            //   logger.log(avcSample.pts + '/' + avcSample.dts + ',' + unitsString + avcSample.units.length);
            // }

            // sort video samples by DTS then PTS then demux id order
            inputSamples.sort(function (a, b) {
              var deltadts = a.dts - b.dts
              var deltapts = a.pts - b.pts
              return deltadts || (deltapts || a.id - b.id)
            })

            // handle broken streams with PTS < DTS, tolerance up 200ms (18000 in 90kHz timescale)
            var PTSDTSshift = inputSamples.reduce(function (prev, curr) {
              return Math.max(Math.min(prev, curr.pts - curr.dts), -18000)
            }, 0)
            if (PTSDTSshift < 0) {
              _logger.logger.warn('PTS < DTS detected in video samples, shifting DTS by ' + Math.round(PTSDTSshift / 90) + ' ms to overcome this issue')
              for (var i = 0; i < inputSamples.length; i++) {
                inputSamples[i].dts += PTSDTSshift
              }
            }

            // PTS is coded on 33bits, and can loop from -2^32 to 2^32
            // ptsNormalize will make PTS/DTS value monotonic, we use last known DTS value as reference value
            var nextAvcDts = void 0
            // contiguous fragments are consecutive fragments from same quality level (same level, new SN = old SN + 1)
            if (contiguous) {
            // if parsed fragment is contiguous with last one, let's use last DTS value as reference
              nextAvcDts = this.nextAvcDts
            } else {
            // if not contiguous, let's use target timeOffset
              nextAvcDts = timeOffset * timeScale
            }

            // compute first DTS and last DTS, normalize them against reference value
            var sample = inputSamples[0]
            firstDTS = Math.max(ptsNormalize(sample.dts - initDTS, nextAvcDts), 0)
            firstPTS = Math.max(ptsNormalize(sample.pts - initDTS, nextAvcDts), 0)

            // check timestamp continuity accross consecutive fragments (this is to remove inter-fragment gap/hole)
            var delta = Math.round((firstDTS - nextAvcDts) / 90)
            // if fragment are contiguous, detect hole/overlapping between fragments
            if (contiguous) {
              if (delta) {
                if (delta > 1) {
                  _logger.logger.log('AVC:' + delta + ' ms hole between fragments detected,filling it')
                } else if (delta < -1) {
                  _logger.logger.log('AVC:' + -delta + ' ms overlapping between fragments detected')
                }
                // remove hole/gap : set DTS to next expected DTS
                firstDTS = nextAvcDts
                inputSamples[0].dts = firstDTS + initDTS
                // offset PTS as well, ensure that PTS is smaller or equal than new DTS
                firstPTS = Math.max(firstPTS - delta, nextAvcDts)
                inputSamples[0].pts = firstPTS + initDTS
                _logger.logger.log('Video/PTS/DTS adjusted: ' + Math.round(firstPTS / 90) + '/' + Math.round(firstDTS / 90) + ',delta:' + delta + ' ms')
              }
            }
            nextDTS = firstDTS

            // compute lastPTS/lastDTS
            sample = inputSamples[inputSamples.length - 1]
            lastDTS = Math.max(ptsNormalize(sample.dts - initDTS, nextAvcDts), 0)
            lastPTS = Math.max(ptsNormalize(sample.pts - initDTS, nextAvcDts), 0)
            lastPTS = Math.max(lastPTS, lastDTS)

            var isSafari = this.isSafari
            // on Safari let's signal the same sample duration for all samples
            // sample duration (as expected by trun MP4 boxes), should be the delta between sample DTS
            // set this constant duration as being the avg delta between consecutive DTS.
            if (isSafari) {
              mp4SampleDuration = Math.round((lastDTS - firstDTS) / (inputSamples.length - 1))
            }

            var nbNalu = 0
            var naluLen = 0
            for (var _i = 0; _i < nbSamples; _i++) {
            // compute total/avc sample length and nb of NAL units
              var _sample = inputSamples[_i]
              var units = _sample.units
              var nbUnits = units.length
              var sampleLen = 0
              for (var j = 0; j < nbUnits; j++) {
                sampleLen += units[j].data.length
              }
              naluLen += sampleLen
              nbNalu += nbUnits
              _sample.length = sampleLen

              // normalize PTS/DTS
              if (isSafari) {
              // sample DTS is computed using a constant decoding offset (mp4SampleDuration) between samples
                _sample.dts = firstDTS + _i * mp4SampleDuration
              } else {
              // ensure sample monotonic DTS
                _sample.dts = Math.max(ptsNormalize(_sample.dts - initDTS, nextAvcDts), firstDTS)
              }
              // we normalize PTS against nextAvcDts, we also substract initDTS (some streams don't start @ PTS O)
              // and we ensure that computed value is greater or equal than sample DTS
              _sample.pts = Math.max(ptsNormalize(_sample.pts - initDTS, nextAvcDts), _sample.dts)
            }

            /* concatenate the video data and construct the mdat in place
        (need 8 more bytes to fill length and mpdat type) */
            var mdatSize = naluLen + 4 * nbNalu + 8
            try {
              mdat = new Uint8Array(mdatSize)
            } catch (err) {
              this.observer.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MUX_ERROR, details: _errors.ErrorDetails.REMUX_ALLOC_ERROR, fatal: false, bytes: mdatSize, reason: 'fail allocating video mdat ' + mdatSize })
              return
            }
            var view = new DataView(mdat.buffer)
            view.setUint32(0, mdatSize)
            mdat.set(_mp4Generator2.default.types.mdat, 4)

            for (var _i2 = 0; _i2 < nbSamples; _i2++) {
              var avcSample = inputSamples[_i2]
              var avcSampleUnits = avcSample.units
              var mp4SampleLength = 0
              var compositionTimeOffset = void 0
              // convert NALU bitstream to MP4 format (prepend NALU with size field)
              for (var _j = 0, _nbUnits = avcSampleUnits.length; _j < _nbUnits; _j++) {
                var unit = avcSampleUnits[_j]
                var unitData = unit.data
                var unitDataLen = unit.data.byteLength
                view.setUint32(offset, unitDataLen)
                offset += 4
                mdat.set(unitData, offset)
                offset += unitDataLen
                mp4SampleLength += 4 + unitDataLen
              }

              if (!isSafari) {
              // expected sample duration is the Decoding Timestamp diff of consecutive samples
                if (_i2 < nbSamples - 1) {
                  mp4SampleDuration = inputSamples[_i2 + 1].dts - avcSample.dts
                } else {
                  var config = this.config
                  var lastFrameDuration = avcSample.dts - inputSamples[_i2 > 0 ? _i2 - 1 : _i2].dts
                  if (config.stretchShortVideoTrack) {
                  // In some cases, a segment's audio track duration may exceed the video track duration.
                  // Since we've already remuxed audio, and we know how long the audio track is, we look to
                  // see if the delta to the next segment is longer than the minimum of maxBufferHole and
                  // maxSeekHole. If so, playback would potentially get stuck, so we artificially inflate
                  // the duration of the last frame to minimize any potential gap between segments.
                    var maxBufferHole = config.maxBufferHole
                    var maxSeekHole = config.maxSeekHole
                    var gapTolerance = Math.floor(Math.min(maxBufferHole, maxSeekHole) * timeScale)
                    var deltaToFrameEnd = (audioTrackLength ? firstPTS + audioTrackLength * timeScale : this.nextAudioPts) - avcSample.pts
                    if (deltaToFrameEnd > gapTolerance) {
                    // We subtract lastFrameDuration from deltaToFrameEnd to try to prevent any video
                    // frame overlap. maxBufferHole/maxSeekHole should be >> lastFrameDuration anyway.
                      mp4SampleDuration = deltaToFrameEnd - lastFrameDuration
                      if (mp4SampleDuration < 0) {
                        mp4SampleDuration = lastFrameDuration
                      }
                      _logger.logger.log('It is approximately ' + deltaToFrameEnd / 90 + ' ms to the next segment; using duration ' + mp4SampleDuration / 90 + ' ms for the last video frame.')
                    } else {
                      mp4SampleDuration = lastFrameDuration
                    }
                  } else {
                    mp4SampleDuration = lastFrameDuration
                  }
                }
                compositionTimeOffset = Math.round(avcSample.pts - avcSample.dts)
              } else {
                compositionTimeOffset = Math.max(0, mp4SampleDuration * Math.round((avcSample.pts - avcSample.dts) / mp4SampleDuration))
              }

              // console.log('PTS/DTS/initDTS/normPTS/normDTS/relative PTS : ${avcSample.pts}/${avcSample.dts}/${initDTS}/${ptsnorm}/${dtsnorm}/${(avcSample.pts/4294967296).toFixed(3)}');
              outputSamples.push({
                size: mp4SampleLength,
                // constant duration
                duration: mp4SampleDuration,
                cts: compositionTimeOffset,
                flags: {
                  isLeading: 0,
                  isDependedOn: 0,
                  hasRedundancy: 0,
                  degradPrio: 0,
                  dependsOn: avcSample.key ? 2 : 1,
                  isNonSync: avcSample.key ? 0 : 1
                }
              })
            }
            // next AVC sample DTS should be equal to last sample DTS + last sample duration (in PES timescale)
            this.nextAvcDts = lastDTS + mp4SampleDuration
            var dropped = track.dropped
            track.len = 0
            track.nbNalu = 0
            track.dropped = 0
            if (outputSamples.length && navigator.userAgent.toLowerCase().indexOf('chrome') > -1) {
              var flags = outputSamples[0].flags
              // chrome workaround, mark first sample as being a Random Access Point to avoid sourcebuffer append issue
              // https://code.google.com/p/chromium/issues/detail?id=229412
              flags.dependsOn = 2
              flags.isNonSync = 0
            }
            track.samples = outputSamples
            moof = _mp4Generator2.default.moof(track.sequenceNumber++, firstDTS, track)
            track.samples = []

            var data = {
              data1: moof,
              data2: mdat,
              startPTS: firstPTS / timeScale,
              endPTS: (lastPTS + mp4SampleDuration) / timeScale,
              startDTS: firstDTS / timeScale,
              endDTS: this.nextAvcDts / timeScale,
              type: 'video',
              nb: outputSamples.length,
              dropped: dropped
            }
            this.observer.trigger(_events2.default.FRAG_PARSING_DATA, data)
            return data
          }
        }, {
          key: 'remuxAudio',
          value: function remuxAudio (track, timeOffset, contiguous, accurateTimeOffset) {
            var inputTimeScale = track.inputTimeScale
            var mp4timeScale = track.timescale
            var scaleFactor = inputTimeScale / mp4timeScale
            var mp4SampleDuration = track.isAAC ? 1024 : 1152
            var inputSampleDuration = mp4SampleDuration * scaleFactor
            var ptsNormalize = this._PTSNormalize
            var initDTS = this._initDTS
            var rawMPEG = !track.isAAC && this.typeSupported.mpeg

            var view
            var offset = rawMPEG ? 0 : 8
            var audioSample
            var mp4Sample
            var unit
            var mdat
            var moof
            var firstPTS
            var firstDTS
            var lastDTS
            var pts
            var dts
            var ptsnorm
            var dtsnorm
            var outputSamples = []
            var inputSamples = []
            var fillFrame
            var newStamp
            var nextAudioPts

            track.samples.sort(function (a, b) {
              return a.pts - b.pts
            })
            inputSamples = track.samples

            // for audio samples, also consider consecutive fragments as being contiguous (even if a level switch occurs),
            // for sake of clarity:
            // consecutive fragments are frags with
            //  - less than 100ms gaps between new time offset and next expected PTS OR
            //  - less than 20 audio frames distance
            // contiguous fragments are consecutive fragments from same quality level (same level, new SN = old SN + 1)
            // this helps ensuring audio continuity
            // and this also avoids audio glitches/cut when switching quality, or reporting wrong duration on first audio frame

            nextAudioPts = this.nextAudioPts
            contiguous |= inputSamples.length && nextAudioPts && (Math.abs(timeOffset - nextAudioPts / inputTimeScale) < 0.1 || Math.abs(inputSamples[0].pts - nextAudioPts - initDTS) < 20 * inputSampleDuration)

            if (!contiguous) {
            // if fragments are not contiguous, let's use timeOffset to compute next Audio PTS
              nextAudioPts = timeOffset * inputTimeScale
            }
            // If the audio track is missing samples, the frames seem to get "left-shifted" within the
            // resulting mp4 segment, causing sync issues and leaving gaps at the end of the audio segment.
            // In an effort to prevent this from happening, we inject frames here where there are gaps.
            // When possible, we inject a silent frame; when that's not possible, we duplicate the last
            // frame.

            // only inject/drop audio frames in case time offset is accurate
            if (accurateTimeOffset && track.isAAC) {
              for (var i = 0, nextPtsNorm = nextAudioPts; i < inputSamples.length;) {
              // First, let's see how far off this frame is from where we expect it to be
                var sample = inputSamples[i]
                var ptsNorm = ptsNormalize(sample.pts - initDTS, nextAudioPts)
                var delta = ptsNorm - nextPtsNorm

                // If we're overlapping by more than a duration, drop this sample
                if (delta <= -inputSampleDuration) {
                  _logger.logger.warn('Dropping 1 audio frame @ ' + (nextPtsNorm / inputTimeScale).toFixed(3) + 's due to ' + Math.abs(1000 * delta / inputTimeScale) + ' ms overlap.')
                  inputSamples.splice(i, 1)
                  track.len -= sample.unit.length
                  // Don't touch nextPtsNorm or i
                }
                // Otherwise, if we're more than a frame away from where we should be, insert missing frames
                // also only inject silent audio frames if currentTime !== 0 (nextPtsNorm !== 0)
                else if (delta >= inputSampleDuration && nextPtsNorm) {
                  var missing = Math.round(delta / inputSampleDuration)
                  _logger.logger.warn('Injecting ' + missing + ' audio frame @ ' + (nextPtsNorm / inputTimeScale).toFixed(3) + 's due to ' + 1000 * delta / inputTimeScale + ' ms gap.')
                  for (var j = 0; j < missing; j++) {
                    newStamp = nextPtsNorm + initDTS
                    newStamp = Math.max(newStamp, initDTS)
                    fillFrame = _aac2.default.getSilentFrame(track.manifestCodec || track.codec, track.channelCount)
                    if (!fillFrame) {
                      _logger.logger.log('Unable to get silent frame for given audio codec; duplicating last frame instead.')
                      fillFrame = sample.unit.subarray()
                    }
                    inputSamples.splice(i, 0, { unit: fillFrame, pts: newStamp, dts: newStamp })
                    track.len += fillFrame.length
                    nextPtsNorm += inputSampleDuration
                    i += 1
                  }

                  // Adjust sample to next expected pts
                  sample.pts = sample.dts = nextPtsNorm + initDTS
                  nextPtsNorm += inputSampleDuration
                  i += 1
                }
                // Otherwise, we're within half a frame duration, so just adjust pts
                else {
                  if (Math.abs(delta) > 0.1 * inputSampleDuration) {
                  // logger.log(`Invalid frame delta ${Math.round(ptsNorm - nextPtsNorm + inputSampleDuration)} at PTS ${Math.round(ptsNorm / 90)} (should be ${Math.round(inputSampleDuration)}).`);
                  }
                  nextPtsNorm += inputSampleDuration
                  if (i === 0) {
                    sample.pts = sample.dts = initDTS + nextAudioPts
                  } else {
                    sample.pts = sample.dts = inputSamples[i - 1].pts + inputSampleDuration
                  }
                  i += 1
                }
              }
            }

            for (var _j2 = 0, _nbSamples = inputSamples.length; _j2 < _nbSamples; _j2++) {
              audioSample = inputSamples[_j2]
              unit = audioSample.unit
              pts = audioSample.pts - initDTS
              dts = audioSample.dts - initDTS
              // logger.log(`Audio/PTS:${Math.round(pts/90)}`);
              // if not first sample
              if (lastDTS !== undefined) {
                ptsnorm = ptsNormalize(pts, lastDTS)
                dtsnorm = ptsNormalize(dts, lastDTS)
                mp4Sample.duration = Math.round((dtsnorm - lastDTS) / scaleFactor)
              } else {
                ptsnorm = ptsNormalize(pts, nextAudioPts)
                dtsnorm = ptsNormalize(dts, nextAudioPts)
                var _delta = Math.round(1000 * (ptsnorm - nextAudioPts) / inputTimeScale)
                var numMissingFrames = 0
                // if fragment are contiguous, detect hole/overlapping between fragments
                // contiguous fragments are consecutive fragments from same quality level (same level, new SN = old SN + 1)
                if (contiguous && track.isAAC) {
                // log delta
                  if (_delta) {
                    if (_delta > 0) {
                      numMissingFrames = Math.round((ptsnorm - nextAudioPts) / inputSampleDuration)
                      _logger.logger.log(_delta + ' ms hole between AAC samples detected,filling it')
                      if (numMissingFrames > 0) {
                        fillFrame = _aac2.default.getSilentFrame(track.manifestCodec || track.codec, track.channelCount)
                        if (!fillFrame) {
                          fillFrame = unit.subarray()
                        }
                        track.len += numMissingFrames * fillFrame.length
                      }
                    // if we have frame overlap, overlapping for more than half a frame duraion
                    } else if (_delta < -12) {
                    // drop overlapping audio frames... browser will deal with it
                      _logger.logger.log(-_delta + ' ms overlapping between AAC samples detected, drop frame')
                      track.len -= unit.byteLength
                      continue
                    }
                    // set PTS/DTS to expected PTS/DTS
                    ptsnorm = dtsnorm = nextAudioPts
                  }
                }
                // remember first PTS of our audioSamples, ensure value is positive
                firstPTS = Math.max(0, ptsnorm)
                firstDTS = Math.max(0, dtsnorm)
                if (track.len > 0) {
                /* concatenate the audio data and construct the mdat in place
              (need 8 more bytes to fill length and mdat type) */

                  var mdatSize = rawMPEG ? track.len : track.len + 8
                  try {
                    mdat = new Uint8Array(mdatSize)
                  } catch (err) {
                    this.observer.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MUX_ERROR, details: _errors.ErrorDetails.REMUX_ALLOC_ERROR, fatal: false, bytes: mdatSize, reason: 'fail allocating audio mdat ' + mdatSize })
                    return
                  }
                  if (!rawMPEG) {
                    view = new DataView(mdat.buffer)
                    view.setUint32(0, mdatSize)
                    mdat.set(_mp4Generator2.default.types.mdat, 4)
                  }
                } else {
                // no audio samples
                  return
                }
                for (var _i3 = 0; _i3 < numMissingFrames; _i3++) {
                  newStamp = ptsnorm - (numMissingFrames - _i3) * inputSampleDuration
                  fillFrame = _aac2.default.getSilentFrame(track.manifestCodec || track.codec, track.channelCount)
                  if (!fillFrame) {
                    _logger.logger.log('Unable to get silent frame for given audio codec; duplicating this frame instead.')
                    fillFrame = unit.subarray()
                  }
                  mdat.set(fillFrame, offset)
                  offset += fillFrame.byteLength
                  mp4Sample = {
                    size: fillFrame.byteLength,
                    cts: 0,
                    duration: 1024,
                    flags: {
                      isLeading: 0,
                      isDependedOn: 0,
                      hasRedundancy: 0,
                      degradPrio: 0,
                      dependsOn: 1
                    }
                  }
                  outputSamples.push(mp4Sample)
                }
              }
              mdat.set(unit, offset)
              var unitLen = unit.byteLength
              offset += unitLen
              // console.log('PTS/DTS/initDTS/normPTS/normDTS/relative PTS : ${audioSample.pts}/${audioSample.dts}/${initDTS}/${ptsnorm}/${dtsnorm}/${(audioSample.pts/4294967296).toFixed(3)}');
              mp4Sample = {
                size: unitLen,
                cts: 0,
                duration: 0,
                flags: {
                  isLeading: 0,
                  isDependedOn: 0,
                  hasRedundancy: 0,
                  degradPrio: 0,
                  dependsOn: 1
                }
              }
              outputSamples.push(mp4Sample)
              lastDTS = dtsnorm
            }
            var lastSampleDuration = 0
            var nbSamples = outputSamples.length
            // set last sample duration as being identical to previous sample
            if (nbSamples >= 2) {
              lastSampleDuration = outputSamples[nbSamples - 2].duration
              mp4Sample.duration = lastSampleDuration
            }
            if (nbSamples) {
            // next audio sample PTS should be equal to last sample PTS + duration
              this.nextAudioPts = ptsnorm + scaleFactor * lastSampleDuration
              // logger.log('Audio/PTS/PTSend:' + audioSample.pts.toFixed(0) + '/' + this.nextAacDts.toFixed(0));
              track.len = 0
              track.samples = outputSamples
              if (rawMPEG) {
                moof = new Uint8Array()
              } else {
                moof = _mp4Generator2.default.moof(track.sequenceNumber++, firstDTS / scaleFactor, track)
              }
              track.samples = []
              var audioData = {
                data1: moof,
                data2: mdat,
                startPTS: firstPTS / inputTimeScale,
                endPTS: this.nextAudioPts / inputTimeScale,
                startDTS: firstDTS / inputTimeScale,
                endDTS: (dtsnorm + scaleFactor * lastSampleDuration) / inputTimeScale,
                type: 'audio',
                nb: nbSamples
              }
              this.observer.trigger(_events2.default.FRAG_PARSING_DATA, audioData)
              return audioData
            }
            return null
          }
        }, {
          key: 'remuxEmptyAudio',
          value: function remuxEmptyAudio (track, timeOffset, contiguous, videoData) {
            var inputTimeScale = track.inputTimeScale
            var mp4timeScale = track.samplerate ? track.samplerate : inputTimeScale
            var scaleFactor = inputTimeScale / mp4timeScale
            var nextAudioPts = this.nextAudioPts

            // sync with video's timestamp
            var startDTS = (nextAudioPts !== undefined ? nextAudioPts : videoData.startDTS * inputTimeScale) + this._initDTS
            var endDTS = videoData.endDTS * inputTimeScale + this._initDTS

            // one sample's duration value
            var sampleDuration = 1024
            var frameDuration = scaleFactor * sampleDuration

            // samples count of this segment's duration
            var nbSamples = Math.ceil((endDTS - startDTS) / frameDuration)

            // silent frame
            var silentFrame = _aac2.default.getSilentFrame(track.manifestCodec || track.codec, track.channelCount)

            _logger.logger.warn('remux empty Audio')
            // Can't remux if we can't generate a silent frame...
            if (!silentFrame) {
              _logger.logger.trace('Unable to remuxEmptyAudio since we were unable to get a silent frame for given audio codec!')
              return
            }

            var samples = []
            for (var i = 0; i < nbSamples; i++) {
              var stamp = startDTS + i * frameDuration
              samples.push({ unit: silentFrame, pts: stamp, dts: stamp })
              track.len += silentFrame.length
            }
            track.samples = samples

            this.remuxAudio(track, timeOffset, contiguous)
          }
        }, {
          key: 'remuxID3',
          value: function remuxID3 (track, timeOffset) {
            var length = track.samples.length
            var sample
            var inputTimeScale = track.inputTimeScale
            var initPTS = this._initPTS
            var initDTS = this._initDTS
            // consume samples
            if (length) {
              for (var index = 0; index < length; index++) {
                sample = track.samples[index]
                // setting id3 pts, dts to relative time
                // using this._initPTS and this._initDTS to calculate relative time
                sample.pts = (sample.pts - initPTS) / inputTimeScale
                sample.dts = (sample.dts - initDTS) / inputTimeScale
              }
              this.observer.trigger(_events2.default.FRAG_PARSING_METADATA, {
                samples: track.samples
              })
            }

            track.samples = []
            timeOffset = timeOffset
          }
        }, {
          key: 'remuxText',
          value: function remuxText (track, timeOffset) {
            track.samples.sort(function (a, b) {
              return a.pts - b.pts
            })

            var length = track.samples.length
            var sample
            var inputTimeScale = track.inputTimeScale
            var initPTS = this._initPTS
            // consume samples
            if (length) {
              for (var index = 0; index < length; index++) {
                sample = track.samples[index]
                // setting text pts, dts to relative time
                // using this._initPTS and this._initDTS to calculate relative time
                sample.pts = (sample.pts - initPTS) / inputTimeScale
              }
              this.observer.trigger(_events2.default.FRAG_PARSING_USERDATA, {
                samples: track.samples
              })
            }

            track.samples = []
            timeOffset = timeOffset
          }
        }, {
          key: '_PTSNormalize',
          value: function _PTSNormalize (value, reference) {
            var offset
            if (reference === undefined) {
              return value
            }
            if (reference < value) {
            // - 2^33
              offset = -8589934592
            } else {
            // + 2^33
              offset = 8589934592
            }
            /* PTS is 33bit (from 0 to 2^33 -1)
        if diff between value and reference is bigger than half of the amplitude (2^32) then it means that
        PTS looping occured. fill the gap */
            while (Math.abs(value - reference) > 4294967296) {
              value += offset
            }
            return value
          }
        }])

        return MP4Remuxer
      }())

      exports.default = MP4Remuxer
    }, { 30: 30, 32: 32, 33: 33, 41: 41, 50: 50 }],
    43: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }()) /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * passthrough remuxer
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     */

      var _events = _dereq_(32)

      var _events2 = _interopRequireDefault(_events)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      var PassThroughRemuxer = (function () {
        function PassThroughRemuxer (observer) {
          _classCallCheck(this, PassThroughRemuxer)

          this.observer = observer
        }

        _createClass(PassThroughRemuxer, [{
          key: 'destroy',
          value: function destroy () {}
        }, {
          key: 'resetTimeStamp',
          value: function resetTimeStamp () {}
        }, {
          key: 'resetInitSegment',
          value: function resetInitSegment () {}
        }, {
          key: 'remux',
          value: function remux (audioTrack, videoTrack, id3Track, textTrack, timeOffset, contiguous, accurateTimeOffset, rawData) {
            var observer = this.observer
            var streamType = ''
            if (audioTrack) {
              streamType += 'audio'
            }
            if (videoTrack) {
              streamType += 'video'
            }
            observer.trigger(_events2.default.FRAG_PARSING_DATA, {
              data1: rawData,
              startPTS: timeOffset,
              startDTS: timeOffset,
              type: streamType,
              nb: 1,
              dropped: 0
            })
            // notify end of parsing
            observer.trigger(_events2.default.FRAG_PARSED)
          }
        }])

        return PassThroughRemuxer
      }())

      exports.default = PassThroughRemuxer
    }, { 32: 32 }],
    44: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      var DECIMAL_RESOLUTION_REGEX = /^(\d+)x(\d+)$/
      var ATTR_LIST_REGEX = /\s*(.+?)\s*=((?:\".*?\")|.*?)(?:,|$)/g

      // adapted from https://github.com/kanongil/node-m3u8parse/blob/master/attrlist.js

      var AttrList = (function () {
        function AttrList (attrs) {
          _classCallCheck(this, AttrList)

          if (typeof attrs === 'string') {
            attrs = AttrList.parseAttrList(attrs)
          }
          for (var attr in attrs) {
            if (attrs.hasOwnProperty(attr)) {
              this[attr] = attrs[attr]
            }
          }
        }

        _createClass(AttrList, [{
          key: 'decimalInteger',
          value: function decimalInteger (attrName) {
            var intValue = parseInt(this[attrName], 10)
            if (intValue > Number.MAX_SAFE_INTEGER) {
              return Infinity
            }
            return intValue
          }
        }, {
          key: 'hexadecimalInteger',
          value: function hexadecimalInteger (attrName) {
            if (this[attrName]) {
              var stringValue = (this[attrName] || '0x').slice(2)
              stringValue = (stringValue.length & 1 ? '0' : '') + stringValue

              var value = new Uint8Array(stringValue.length / 2)
              for (var i = 0; i < stringValue.length / 2; i++) {
                value[i] = parseInt(stringValue.slice(i * 2, i * 2 + 2), 16)
              }
              return value
            } else {
              return null
            }
          }
        }, {
          key: 'hexadecimalIntegerAsNumber',
          value: function hexadecimalIntegerAsNumber (attrName) {
            var intValue = parseInt(this[attrName], 16)
            if (intValue > Number.MAX_SAFE_INTEGER) {
              return Infinity
            }
            return intValue
          }
        }, {
          key: 'decimalFloatingPoint',
          value: function decimalFloatingPoint (attrName) {
            return parseFloat(this[attrName])
          }
        }, {
          key: 'enumeratedString',
          value: function enumeratedString (attrName) {
            return this[attrName]
          }
        }, {
          key: 'decimalResolution',
          value: function decimalResolution (attrName) {
            var res = DECIMAL_RESOLUTION_REGEX.exec(this[attrName])
            if (res === null) {
              return undefined
            }
            return {
              width: parseInt(res[1], 10),
              height: parseInt(res[2], 10)
            }
          }
        }], [{
          key: 'parseAttrList',
          value: function parseAttrList (input) {
            var match
            var attrs = {}
            ATTR_LIST_REGEX.lastIndex = 0
            while ((match = ATTR_LIST_REGEX.exec(input)) !== null) {
              var value = match[2]
              var quote = '"'

              if (value.indexOf(quote) === 0 && value.lastIndexOf(quote) === value.length - 1) {
                value = value.slice(1, -1)
              }
              attrs[match[1]] = value
            }
            return attrs
          }
        }])

        return AttrList
      }())

      exports.default = AttrList
    }, {}],
    45: [function (_dereq_, module, exports) {
      'use strict'

      var BinarySearch = {
        /**
     * Searches for an item in an array which matches a certain condition.
     * This requires the condition to only match one item in the array,
     * and for the array to be ordered.
     *
     * @param {Array} list The array to search.
     * @param {Function} comparisonFunction
     *      Called and provided a candidate item as the first argument.
     *      Should return:
     *          > -1 if the item should be located at a lower index than the provided item.
     *          > 1 if the item should be located at a higher index than the provided item.
     *          > 0 if the item is the item you're looking for.
     *
     * @return {*} The object if it is found or null otherwise.
     */
        search: function search (list, comparisonFunction) {
          var minIndex = 0
          var maxIndex = list.length - 1
          var currentIndex = null
          var currentElement = null

          while (minIndex <= maxIndex) {
            currentIndex = (minIndex + maxIndex) / 2 | 0
            currentElement = list[currentIndex]

            var comparisonResult = comparisonFunction(currentElement)
            if (comparisonResult > 0) {
              minIndex = currentIndex + 1
            } else if (comparisonResult < 0) {
              maxIndex = currentIndex - 1
            } else {
              return currentElement
            }
          }

          return null
        }
      }

      module.exports = BinarySearch
    }, {}],
    46: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      /**
 *
 * This code was ported from the dash.js project at:
 *   https://github.com/Dash-Industry-Forum/dash.js/blob/development/externals/cea608-parser.js
 *   https://github.com/Dash-Industry-Forum/dash.js/commit/8269b26a761e0853bb21d78780ed945144ecdd4d#diff-71bc295a2d6b6b7093a1d3290d53a4b2
 *
 * The original copyright appears below:
 *
 * The copyright in this software is being made available under the BSD License,
 * included below. This software may be subject to other third party and contributor
 * rights, including patent rights, and no such rights are granted under this license.
 *
 * Copyright (c) 2015-2016, DASH Industry Forum.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *  1. Redistributions of source code must retain the above copyright notice, this
 *  list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright notice,
 *  this list of conditions and the following disclaimer in the documentation and/or
 *  other materials provided with the distribution.
 *  2. Neither the name of Dash Industry Forum nor the names of its
 *  contributors may be used to endorse or promote products derived from this software
 *  without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY
 *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 *  POSSIBILITY OF SUCH DAMAGE.
 */
      /**
 *  Exceptions from regular ASCII. CodePoints are mapped to UTF-16 codes
 */

      var specialCea608CharsCodes = {
        0x2a: 0xe1, // lowercase a, acute accent
        0x5c: 0xe9, // lowercase e, acute accent
        0x5e: 0xed, // lowercase i, acute accent
        0x5f: 0xf3, // lowercase o, acute accent
        0x60: 0xfa, // lowercase u, acute accent
        0x7b: 0xe7, // lowercase c with cedilla
        0x7c: 0xf7, // division symbol
        0x7d: 0xd1, // uppercase N tilde
        0x7e: 0xf1, // lowercase n tilde
        0x7f: 0x2588, // Full block
        // THIS BLOCK INCLUDES THE 16 EXTENDED (TWO-BYTE) LINE 21 CHARACTERS
        // THAT COME FROM HI BYTE=0x11 AND LOW BETWEEN 0x30 AND 0x3F
        // THIS MEANS THAT \x50 MUST BE ADDED TO THE VALUES
        0x80: 0xae, // Registered symbol (R)
        0x81: 0xb0, // degree sign
        0x82: 0xbd, // 1/2 symbol
        0x83: 0xbf, // Inverted (open) question mark
        0x84: 0x2122, // Trademark symbol (TM)
        0x85: 0xa2, // Cents symbol
        0x86: 0xa3, // Pounds sterling
        0x87: 0x266a, // Music 8'th note
        0x88: 0xe0, // lowercase a, grave accent
        0x89: 0x20, // transparent space (regular)
        0x8a: 0xe8, // lowercase e, grave accent
        0x8b: 0xe2, // lowercase a, circumflex accent
        0x8c: 0xea, // lowercase e, circumflex accent
        0x8d: 0xee, // lowercase i, circumflex accent
        0x8e: 0xf4, // lowercase o, circumflex accent
        0x8f: 0xfb, // lowercase u, circumflex accent
        // THIS BLOCK INCLUDES THE 32 EXTENDED (TWO-BYTE) LINE 21 CHARACTERS
        // THAT COME FROM HI BYTE=0x12 AND LOW BETWEEN 0x20 AND 0x3F
        0x90: 0xc1, // capital letter A with acute
        0x91: 0xc9, // capital letter E with acute
        0x92: 0xd3, // capital letter O with acute
        0x93: 0xda, // capital letter U with acute
        0x94: 0xdc, // capital letter U with diaresis
        0x95: 0xfc, // lowercase letter U with diaeresis
        0x96: 0x2018, // opening single quote
        0x97: 0xa1, // inverted exclamation mark
        0x98: 0x2a, // asterisk
        0x99: 0x2019, // closing single quote
        0x9a: 0x2501, // box drawings heavy horizontal
        0x9b: 0xa9, // copyright sign
        0x9c: 0x2120, // Service mark
        0x9d: 0x2022, // (round) bullet
        0x9e: 0x201c, // Left double quotation mark
        0x9f: 0x201d, // Right double quotation mark
        0xa0: 0xc0, // uppercase A, grave accent
        0xa1: 0xc2, // uppercase A, circumflex
        0xa2: 0xc7, // uppercase C with cedilla
        0xa3: 0xc8, // uppercase E, grave accent
        0xa4: 0xca, // uppercase E, circumflex
        0xa5: 0xcb, // capital letter E with diaresis
        0xa6: 0xeb, // lowercase letter e with diaresis
        0xa7: 0xce, // uppercase I, circumflex
        0xa8: 0xcf, // uppercase I, with diaresis
        0xa9: 0xef, // lowercase i, with diaresis
        0xaa: 0xd4, // uppercase O, circumflex
        0xab: 0xd9, // uppercase U, grave accent
        0xac: 0xf9, // lowercase u, grave accent
        0xad: 0xdb, // uppercase U, circumflex
        0xae: 0xab, // left-pointing double angle quotation mark
        0xaf: 0xbb, // right-pointing double angle quotation mark
        // THIS BLOCK INCLUDES THE 32 EXTENDED (TWO-BYTE) LINE 21 CHARACTERS
        // THAT COME FROM HI BYTE=0x13 AND LOW BETWEEN 0x20 AND 0x3F
        0xb0: 0xc3, // Uppercase A, tilde
        0xb1: 0xe3, // Lowercase a, tilde
        0xb2: 0xcd, // Uppercase I, acute accent
        0xb3: 0xcc, // Uppercase I, grave accent
        0xb4: 0xec, // Lowercase i, grave accent
        0xb5: 0xd2, // Uppercase O, grave accent
        0xb6: 0xf2, // Lowercase o, grave accent
        0xb7: 0xd5, // Uppercase O, tilde
        0xb8: 0xf5, // Lowercase o, tilde
        0xb9: 0x7b, // Open curly brace
        0xba: 0x7d, // Closing curly brace
        0xbb: 0x5c, // Backslash
        0xbc: 0x5e, // Caret
        0xbd: 0x5f, // Underscore
        0xbe: 0x7c, // Pipe (vertical line)
        0xbf: 0x223c, // Tilde operator
        0xc0: 0xc4, // Uppercase A, umlaut
        0xc1: 0xe4, // Lowercase A, umlaut
        0xc2: 0xd6, // Uppercase O, umlaut
        0xc3: 0xf6, // Lowercase o, umlaut
        0xc4: 0xdf, // Esszett (sharp S)
        0xc5: 0xa5, // Yen symbol
        0xc6: 0xa4, // Generic currency sign
        0xc7: 0x2503, // Box drawings heavy vertical
        0xc8: 0xc5, // Uppercase A, ring
        0xc9: 0xe5, // Lowercase A, ring
        0xca: 0xd8, // Uppercase O, stroke
        0xcb: 0xf8, // Lowercase o, strok
        0xcc: 0x250f, // Box drawings heavy down and right
        0xcd: 0x2513, // Box drawings heavy down and left
        0xce: 0x2517, // Box drawings heavy up and right
        0xcf: 0x251b // Box drawings heavy up and left
      }

      /**
 * Utils
 */
      var getCharForByte = function getCharForByte (byte) {
        var charCode = byte
        if (specialCea608CharsCodes.hasOwnProperty(byte)) {
          charCode = specialCea608CharsCodes[byte]
        }
        return String.fromCharCode(charCode)
      }

      var NR_ROWS = 15
      var NR_COLS = 100
      // Tables to look up row from PAC data
      var rowsLowCh1 = { 0x11: 1, 0x12: 3, 0x15: 5, 0x16: 7, 0x17: 9, 0x10: 11, 0x13: 12, 0x14: 14 }
      var rowsHighCh1 = { 0x11: 2, 0x12: 4, 0x15: 6, 0x16: 8, 0x17: 10, 0x13: 13, 0x14: 15 }
      var rowsLowCh2 = { 0x19: 1, 0x1A: 3, 0x1D: 5, 0x1E: 7, 0x1F: 9, 0x18: 11, 0x1B: 12, 0x1C: 14 }
      var rowsHighCh2 = { 0x19: 2, 0x1A: 4, 0x1D: 6, 0x1E: 8, 0x1F: 10, 0x1B: 13, 0x1C: 15 }

      var backgroundColors = ['white', 'green', 'blue', 'cyan', 'red', 'yellow', 'magenta', 'black', 'transparent']

      /**
 * Simple logger class to be able to write with time-stamps and filter on level.
 */
      var logger = {
        verboseFilter: { DATA: 3, DEBUG: 3, INFO: 2, WARNING: 2, TEXT: 1, ERROR: 0 },
        time: null,
        verboseLevel: 0, // Only write errors
        setTime: function setTime (newTime) {
          this.time = newTime
        },
        log: function log (severity, msg) {
          var minLevel = this.verboseFilter[severity]
          if (this.verboseLevel >= minLevel) {
            console.log(this.time + ' [' + severity + '] ' + msg)
          }
        }
      }

      var numArrayToHexArray = function numArrayToHexArray (numArray) {
        var hexArray = []
        for (var j = 0; j < numArray.length; j++) {
          hexArray.push(numArray[j].toString(16))
        }
        return hexArray
      }

      var PenState = (function () {
        function PenState (foreground, underline, italics, background, flash) {
          _classCallCheck(this, PenState)

          this.foreground = foreground || 'white'
          this.underline = underline || false
          this.italics = italics || false
          this.background = background || 'black'
          this.flash = flash || false
        }

        _createClass(PenState, [{
          key: 'reset',
          value: function reset () {
            this.foreground = 'white'
            this.underline = false
            this.italics = false
            this.background = 'black'
            this.flash = false
          }
        }, {
          key: 'setStyles',
          value: function setStyles (styles) {
            var attribs = ['foreground', 'underline', 'italics', 'background', 'flash']
            for (var i = 0; i < attribs.length; i++) {
              var style = attribs[i]
              if (styles.hasOwnProperty(style)) {
                this[style] = styles[style]
              }
            }
          }
        }, {
          key: 'isDefault',
          value: function isDefault () {
            return this.foreground === 'white' && !this.underline && !this.italics && this.background === 'black' && !this.flash
          }
        }, {
          key: 'equals',
          value: function equals (other) {
            return this.foreground === other.foreground && this.underline === other.underline && this.italics === other.italics && this.background === other.background && this.flash === other.flash
          }
        }, {
          key: 'copy',
          value: function copy (newPenState) {
            this.foreground = newPenState.foreground
            this.underline = newPenState.underline
            this.italics = newPenState.italics
            this.background = newPenState.background
            this.flash = newPenState.flash
          }
        }, {
          key: 'toString',
          value: function toString () {
            return 'color=' + this.foreground + ', underline=' + this.underline + ', italics=' + this.italics + ', background=' + this.background + ', flash=' + this.flash
          }
        }])

        return PenState
      }())

      /**
 * Unicode character with styling and background.
 * @constructor
 */

      var StyledUnicodeChar = (function () {
        function StyledUnicodeChar (uchar, foreground, underline, italics, background, flash) {
          _classCallCheck(this, StyledUnicodeChar)

          this.uchar = uchar || ' ' // unicode character
          this.penState = new PenState(foreground, underline, italics, background, flash)
        }

        _createClass(StyledUnicodeChar, [{
          key: 'reset',
          value: function reset () {
            this.uchar = ' '
            this.penState.reset()
          }
        }, {
          key: 'setChar',
          value: function setChar (uchar, newPenState) {
            this.uchar = uchar
            this.penState.copy(newPenState)
          }
        }, {
          key: 'setPenState',
          value: function setPenState (newPenState) {
            this.penState.copy(newPenState)
          }
        }, {
          key: 'equals',
          value: function equals (other) {
            return this.uchar === other.uchar && this.penState.equals(other.penState)
          }
        }, {
          key: 'copy',
          value: function copy (newChar) {
            this.uchar = newChar.uchar
            this.penState.copy(newChar.penState)
          }
        }, {
          key: 'isEmpty',
          value: function isEmpty () {
            return this.uchar === ' ' && this.penState.isDefault()
          }
        }])

        return StyledUnicodeChar
      }())

      /**
 * CEA-608 row consisting of NR_COLS instances of StyledUnicodeChar.
 * @constructor
 */

      var Row = (function () {
        function Row () {
          _classCallCheck(this, Row)

          this.chars = []
          for (var i = 0; i < NR_COLS; i++) {
            this.chars.push(new StyledUnicodeChar())
          }
          this.pos = 0
          this.currPenState = new PenState()
        }

        _createClass(Row, [{
          key: 'equals',
          value: function equals (other) {
            var equal = true
            for (var i = 0; i < NR_COLS; i++) {
              if (!this.chars[i].equals(other.chars[i])) {
                equal = false
                break
              }
            }
            return equal
          }
        }, {
          key: 'copy',
          value: function copy (other) {
            for (var i = 0; i < NR_COLS; i++) {
              this.chars[i].copy(other.chars[i])
            }
          }
        }, {
          key: 'isEmpty',
          value: function isEmpty () {
            var empty = true
            for (var i = 0; i < NR_COLS; i++) {
              if (!this.chars[i].isEmpty()) {
                empty = false
                break
              }
            }
            return empty
          }

          /**
         *  Set the cursor to a valid column.
         */

        }, {
          key: 'setCursor',
          value: function setCursor (absPos) {
            if (this.pos !== absPos) {
              this.pos = absPos
            }
            if (this.pos < 0) {
              logger.log('ERROR', 'Negative cursor position ' + this.pos)
              this.pos = 0
            } else if (this.pos > NR_COLS) {
              logger.log('ERROR', 'Too large cursor position ' + this.pos)
              this.pos = NR_COLS
            }
          }

          /**
         * Move the cursor relative to current position.
         */

        }, {
          key: 'moveCursor',
          value: function moveCursor (relPos) {
            var newPos = this.pos + relPos
            if (relPos > 1) {
              for (var i = this.pos + 1; i < newPos + 1; i++) {
                this.chars[i].setPenState(this.currPenState)
              }
            }
            this.setCursor(newPos)
          }

          /**
         * Backspace, move one step back and clear character.
         */

        }, {
          key: 'backSpace',
          value: function backSpace () {
            this.moveCursor(-1)
            this.chars[this.pos].setChar(' ', this.currPenState)
          }
        }, {
          key: 'insertChar',
          value: function insertChar (byte) {
            if (byte >= 0x90) {
            // Extended char
              this.backSpace()
            }
            var char = getCharForByte(byte)
            if (this.pos >= NR_COLS) {
              logger.log('ERROR', 'Cannot insert ' + byte.toString(16) + ' (' + char + ') at position ' + this.pos + '. Skipping it!')
              return
            }
            this.chars[this.pos].setChar(char, this.currPenState)
            this.moveCursor(1)
          }
        }, {
          key: 'clearFromPos',
          value: function clearFromPos (startPos) {
            var i
            for (i = startPos; i < NR_COLS; i++) {
              this.chars[i].reset()
            }
          }
        }, {
          key: 'clear',
          value: function clear () {
            this.clearFromPos(0)
            this.pos = 0
            this.currPenState.reset()
          }
        }, {
          key: 'clearToEndOfRow',
          value: function clearToEndOfRow () {
            this.clearFromPos(this.pos)
          }
        }, {
          key: 'getTextString',
          value: function getTextString () {
            var chars = []
            var empty = true
            for (var i = 0; i < NR_COLS; i++) {
              var char = this.chars[i].uchar
              if (char !== ' ') {
                empty = false
              }
              chars.push(char)
            }
            if (empty) {
              return ''
            } else {
              return chars.join('')
            }
          }
        }, {
          key: 'setPenStyles',
          value: function setPenStyles (styles) {
            this.currPenState.setStyles(styles)
            var currChar = this.chars[this.pos]
            currChar.setPenState(this.currPenState)
          }
        }])

        return Row
      }())

      /**
 * Keep a CEA-608 screen of 32x15 styled characters
 * @constructor
*/

      var CaptionScreen = (function () {
        function CaptionScreen () {
          _classCallCheck(this, CaptionScreen)

          this.rows = []
          for (var i = 0; i < NR_ROWS; i++) {
            this.rows.push(new Row()) // Note that we use zero-based numbering (0-14)
          }
          this.currRow = NR_ROWS - 1
          this.nrRollUpRows = null
          this.reset()
        }

        _createClass(CaptionScreen, [{
          key: 'reset',
          value: function reset () {
            for (var i = 0; i < NR_ROWS; i++) {
              this.rows[i].clear()
            }
            this.currRow = NR_ROWS - 1
          }
        }, {
          key: 'equals',
          value: function equals (other) {
            var equal = true
            for (var i = 0; i < NR_ROWS; i++) {
              if (!this.rows[i].equals(other.rows[i])) {
                equal = false
                break
              }
            }
            return equal
          }
        }, {
          key: 'copy',
          value: function copy (other) {
            for (var i = 0; i < NR_ROWS; i++) {
              this.rows[i].copy(other.rows[i])
            }
          }
        }, {
          key: 'isEmpty',
          value: function isEmpty () {
            var empty = true
            for (var i = 0; i < NR_ROWS; i++) {
              if (!this.rows[i].isEmpty()) {
                empty = false
                break
              }
            }
            return empty
          }
        }, {
          key: 'backSpace',
          value: function backSpace () {
            var row = this.rows[this.currRow]
            row.backSpace()
          }
        }, {
          key: 'clearToEndOfRow',
          value: function clearToEndOfRow () {
            var row = this.rows[this.currRow]
            row.clearToEndOfRow()
          }

          /**
         * Insert a character (without styling) in the current row.
         */

        }, {
          key: 'insertChar',
          value: function insertChar (char) {
            var row = this.rows[this.currRow]
            row.insertChar(char)
          }
        }, {
          key: 'setPen',
          value: function setPen (styles) {
            var row = this.rows[this.currRow]
            row.setPenStyles(styles)
          }
        }, {
          key: 'moveCursor',
          value: function moveCursor (relPos) {
            var row = this.rows[this.currRow]
            row.moveCursor(relPos)
          }
        }, {
          key: 'setCursor',
          value: function setCursor (absPos) {
            logger.log('INFO', 'setCursor: ' + absPos)
            var row = this.rows[this.currRow]
            row.setCursor(absPos)
          }
        }, {
          key: 'setPAC',
          value: function setPAC (pacData) {
            logger.log('INFO', 'pacData = ' + JSON.stringify(pacData))
            var newRow = pacData.row - 1
            if (this.nrRollUpRows && newRow < this.nrRollUpRows - 1) {
              newRow = this.nrRollUpRows - 1
            }

            // Make sure this only affects Roll-up Captions by checking this.nrRollUpRows
            if (this.nrRollUpRows && this.currRow !== newRow) {
            // clear all rows first
              for (var i = 0; i < NR_ROWS; i++) {
                this.rows[i].clear()
              }

              // Copy this.nrRollUpRows rows from lastOutputScreen and place it in the newRow location
              // topRowIndex - the start of rows to copy (inclusive index)
              var topRowIndex = this.currRow + 1 - this.nrRollUpRows
              // We only copy if the last position was already shown.
              // We use the cueStartTime value to check this.
              var lastOutputScreen = this.lastOutputScreen
              if (lastOutputScreen) {
                var prevLineTime = lastOutputScreen.rows[topRowIndex].cueStartTime
                if (prevLineTime && prevLineTime < logger.time) {
                  for (var _i = 0; _i < this.nrRollUpRows; _i++) {
                    this.rows[newRow - this.nrRollUpRows + _i + 1].copy(lastOutputScreen.rows[topRowIndex + _i])
                  }
                }
              }
            }

            this.currRow = newRow
            var row = this.rows[this.currRow]
            if (pacData.indent !== null) {
              var indent = pacData.indent
              var prevPos = Math.max(indent - 1, 0)
              row.setCursor(pacData.indent)
              pacData.color = row.chars[prevPos].penState.foreground
            }
            var styles = { foreground: pacData.color, underline: pacData.underline, italics: pacData.italics, background: 'black', flash: false }
            this.setPen(styles)
          }

          /**
         * Set background/extra foreground, but first do back_space, and then insert space (backwards compatibility).
         */

        }, {
          key: 'setBkgData',
          value: function setBkgData (bkgData) {
            logger.log('INFO', 'bkgData = ' + JSON.stringify(bkgData))
            this.backSpace()
            this.setPen(bkgData)
            this.insertChar(0x20) // Space
          }
        }, {
          key: 'setRollUpRows',
          value: function setRollUpRows (nrRows) {
            this.nrRollUpRows = nrRows
          }
        }, {
          key: 'rollUp',
          value: function rollUp () {
            if (this.nrRollUpRows === null) {
              logger.log('DEBUG', 'roll_up but nrRollUpRows not set yet')
              return // Not properly setup
            }
            logger.log('TEXT', this.getDisplayText())
            var topRowIndex = this.currRow + 1 - this.nrRollUpRows
            var topRow = this.rows.splice(topRowIndex, 1)[0]
            topRow.clear()
            this.rows.splice(this.currRow, 0, topRow)
            logger.log('INFO', 'Rolling up')
            // logger.log('TEXT', this.get_display_text())
          }

          /**
         * Get all non-empty rows with as unicode text.
         */

        }, {
          key: 'getDisplayText',
          value: function getDisplayText (asOneRow) {
            asOneRow = asOneRow || false
            var displayText = []
            var text = ''
            var rowNr = -1
            for (var i = 0; i < NR_ROWS; i++) {
              var rowText = this.rows[i].getTextString()
              if (rowText) {
                rowNr = i + 1
                if (asOneRow) {
                  displayText.push('Row ' + rowNr + ': \'' + rowText + '\'')
                } else {
                  displayText.push(rowText.trim())
                }
              }
            }
            if (displayText.length > 0) {
              if (asOneRow) {
                text = '[' + displayText.join(' | ') + ']'
              } else {
                text = displayText.join('\n')
              }
            }
            return text
          }
        }, {
          key: 'getTextAndFormat',
          value: function getTextAndFormat () {
            return this.rows
          }
        }])

        return CaptionScreen
      }())

      // var modes = ['MODE_ROLL-UP', 'MODE_POP-ON', 'MODE_PAINT-ON', 'MODE_TEXT'];

      var Cea608Channel = (function () {
        function Cea608Channel (channelNumber, outputFilter) {
          _classCallCheck(this, Cea608Channel)

          this.chNr = channelNumber
          this.outputFilter = outputFilter
          this.mode = null
          this.verbose = 0
          this.displayedMemory = new CaptionScreen()
          this.nonDisplayedMemory = new CaptionScreen()
          this.lastOutputScreen = new CaptionScreen()
          this.currRollUpRow = this.displayedMemory.rows[NR_ROWS - 1]
          this.writeScreen = this.displayedMemory
          this.mode = null
          this.cueStartTime = null // Keeps track of where a cue started.
        }

        _createClass(Cea608Channel, [{
          key: 'reset',
          value: function reset () {
            this.mode = null
            this.displayedMemory.reset()
            this.nonDisplayedMemory.reset()
            this.lastOutputScreen.reset()
            this.currRollUpRow = this.displayedMemory.rows[NR_ROWS - 1]
            this.writeScreen = this.displayedMemory
            this.mode = null
            this.cueStartTime = null
            this.lastCueEndTime = null
          }
        }, {
          key: 'getHandler',
          value: function getHandler () {
            return this.outputFilter
          }
        }, {
          key: 'setHandler',
          value: function setHandler (newHandler) {
            this.outputFilter = newHandler
          }
        }, {
          key: 'setPAC',
          value: function setPAC (pacData) {
            this.writeScreen.setPAC(pacData)
          }
        }, {
          key: 'setBkgData',
          value: function setBkgData (bkgData) {
            this.writeScreen.setBkgData(bkgData)
          }
        }, {
          key: 'setMode',
          value: function setMode (newMode) {
            if (newMode === this.mode) {
              return
            }
            this.mode = newMode
            logger.log('INFO', 'MODE=' + newMode)
            if (this.mode === 'MODE_POP-ON') {
              this.writeScreen = this.nonDisplayedMemory
            } else {
              this.writeScreen = this.displayedMemory
              this.writeScreen.reset()
            }
            if (this.mode !== 'MODE_ROLL-UP') {
              this.displayedMemory.nrRollUpRows = null
              this.nonDisplayedMemory.nrRollUpRows = null
            }
            this.mode = newMode
          }
        }, {
          key: 'insertChars',
          value: function insertChars (chars) {
            for (var i = 0; i < chars.length; i++) {
              this.writeScreen.insertChar(chars[i])
            }
            var screen = this.writeScreen === this.displayedMemory ? 'DISP' : 'NON_DISP'
            logger.log('INFO', screen + ': ' + this.writeScreen.getDisplayText(true))
            if (this.mode === 'MODE_PAINT-ON' || this.mode === 'MODE_ROLL-UP') {
              logger.log('TEXT', 'DISPLAYED: ' + this.displayedMemory.getDisplayText(true))
              this.outputDataUpdate()
            }
          }
        }, {
          key: 'ccRCL',
          value: function ccRCL () {
          // Resume Caption Loading (switch mode to Pop On)
            logger.log('INFO', 'RCL - Resume Caption Loading')
            this.setMode('MODE_POP-ON')
          }
        }, {
          key: 'ccBS',
          value: function ccBS () {
          // BackSpace
            logger.log('INFO', 'BS - BackSpace')
            if (this.mode === 'MODE_TEXT') {
              return
            }
            this.writeScreen.backSpace()
            if (this.writeScreen === this.displayedMemory) {
              this.outputDataUpdate()
            }
          }
        }, {
          key: 'ccAOF',
          value: function ccAOF () {
            // Reserved (formerly Alarm Off)

          }
        }, {
          key: 'ccAON',
          value: function ccAON () {
            // Reserved (formerly Alarm On)

          }
        }, {
          key: 'ccDER',
          value: function ccDER () {
          // Delete to End of Row
            logger.log('INFO', 'DER- Delete to End of Row')
            this.writeScreen.clearToEndOfRow()
            this.outputDataUpdate()
          }
        }, {
          key: 'ccRU',
          value: function ccRU (nrRows) {
          // Roll-Up Captions-2,3,or 4 Rows
            logger.log('INFO', 'RU(' + nrRows + ') - Roll Up')
            this.writeScreen = this.displayedMemory
            this.setMode('MODE_ROLL-UP')
            this.writeScreen.setRollUpRows(nrRows)
          }
        }, {
          key: 'ccFON',
          value: function ccFON () {
          // Flash On
            logger.log('INFO', 'FON - Flash On')
            this.writeScreen.setPen({ flash: true })
          }
        }, {
          key: 'ccRDC',
          value: function ccRDC () {
          // Resume Direct Captioning (switch mode to PaintOn)
            logger.log('INFO', 'RDC - Resume Direct Captioning')
            this.setMode('MODE_PAINT-ON')
          }
        }, {
          key: 'ccTR',
          value: function ccTR () {
          // Text Restart in text mode (not supported, however)
            logger.log('INFO', 'TR')
            this.setMode('MODE_TEXT')
          }
        }, {
          key: 'ccRTD',
          value: function ccRTD () {
          // Resume Text Display in Text mode (not supported, however)
            logger.log('INFO', 'RTD')
            this.setMode('MODE_TEXT')
          }
        }, {
          key: 'ccEDM',
          value: function ccEDM () {
          // Erase Displayed Memory
            logger.log('INFO', 'EDM - Erase Displayed Memory')
            this.displayedMemory.reset()
            this.outputDataUpdate()
          }
        }, {
          key: 'ccCR',
          value: function ccCR () {
          // Carriage Return
            logger.log('CR - Carriage Return')
            this.writeScreen.rollUp()
            this.outputDataUpdate()
          }
        }, {
          key: 'ccENM',
          value: function ccENM () {
          // Erase Non-Displayed Memory
            logger.log('INFO', 'ENM - Erase Non-displayed Memory')
            this.nonDisplayedMemory.reset()
          }
        }, {
          key: 'ccEOC',
          value: function ccEOC () {
          // End of Caption (Flip Memories)
            logger.log('INFO', 'EOC - End Of Caption')
            if (this.mode === 'MODE_POP-ON') {
              var tmp = this.displayedMemory
              this.displayedMemory = this.nonDisplayedMemory
              this.nonDisplayedMemory = tmp
              this.writeScreen = this.nonDisplayedMemory
              logger.log('TEXT', 'DISP: ' + this.displayedMemory.getDisplayText())
            }
            this.outputDataUpdate()
          }
        }, {
          key: 'ccTO',
          value: function ccTO (nrCols) {
          // Tab Offset 1,2, or 3 columns
            logger.log('INFO', 'TO(' + nrCols + ') - Tab Offset')
            this.writeScreen.moveCursor(nrCols)
          }
        }, {
          key: 'ccMIDROW',
          value: function ccMIDROW (secondByte) {
          // Parse MIDROW command
            var styles = { flash: false }
            styles.underline = secondByte % 2 === 1
            styles.italics = secondByte >= 0x2e
            if (!styles.italics) {
              var colorIndex = Math.floor(secondByte / 2) - 0x10
              var colors = ['white', 'green', 'blue', 'cyan', 'red', 'yellow', 'magenta']
              styles.foreground = colors[colorIndex]
            } else {
              styles.foreground = 'white'
            }
            logger.log('INFO', 'MIDROW: ' + JSON.stringify(styles))
            this.writeScreen.setPen(styles)
          }
        }, {
          key: 'outputDataUpdate',
          value: function outputDataUpdate () {
            var t = logger.time
            if (t === null) {
              return
            }
            if (this.outputFilter) {
              if (this.outputFilter.updateData) {
                this.outputFilter.updateData(t, this.displayedMemory)
              }
              if (this.cueStartTime === null && !this.displayedMemory.isEmpty()) {
              // Start of a new cue
                this.cueStartTime = t
              } else {
                if (!this.displayedMemory.equals(this.lastOutputScreen)) {
                  if (this.outputFilter.newCue) {
                    this.outputFilter.newCue(this.cueStartTime, t, this.lastOutputScreen)
                  }
                  this.cueStartTime = this.displayedMemory.isEmpty() ? null : t
                }
              }
              this.lastOutputScreen.copy(this.displayedMemory)
            }
          }
        }, {
          key: 'cueSplitAtTime',
          value: function cueSplitAtTime (t) {
            if (this.outputFilter) {
              if (!this.displayedMemory.isEmpty()) {
                if (this.outputFilter.newCue) {
                  this.outputFilter.newCue(this.cueStartTime, t, this.displayedMemory)
                }
                this.cueStartTime = t
              }
            }
          }
        }])

        return Cea608Channel
      }())

      var Cea608Parser = (function () {
        function Cea608Parser (field, out1, out2) {
          _classCallCheck(this, Cea608Parser)

          this.field = field || 1
          this.outputs = [out1, out2]
          this.channels = [new Cea608Channel(1, out1), new Cea608Channel(2, out2)]
          this.currChNr = -1 // Will be 1 or 2
          this.lastCmdA = null // First byte of last command
          this.lastCmdB = null // Second byte of last command
          this.bufferedData = []
          this.startTime = null
          this.lastTime = null
          this.dataCounters = { padding: 0, char: 0, cmd: 0, other: 0 }
        }

        _createClass(Cea608Parser, [{
          key: 'getHandler',
          value: function getHandler (index) {
            return this.channels[index].getHandler()
          }
        }, {
          key: 'setHandler',
          value: function setHandler (index, newHandler) {
            this.channels[index].setHandler(newHandler)
          }

          /**
         * Add data for time t in forms of list of bytes (unsigned ints). The bytes are treated as pairs.
         */

        }, {
          key: 'addData',
          value: function addData (t, byteList) {
            var cmdFound
            var a
            var b
            var charsFound = false

            this.lastTime = t
            logger.setTime(t)

            for (var i = 0; i < byteList.length; i += 2) {
              a = byteList[i] & 0x7f
              b = byteList[i + 1] & 0x7f
              if (a === 0 && b === 0) {
                this.dataCounters.padding += 2
                continue
              } else {
                logger.log('DATA', '[' + numArrayToHexArray([byteList[i], byteList[i + 1]]) + '] -> (' + numArrayToHexArray([a, b]) + ')')
              }
              cmdFound = this.parseCmd(a, b)
              if (!cmdFound) {
                cmdFound = this.parseMidrow(a, b)
              }
              if (!cmdFound) {
                cmdFound = this.parsePAC(a, b)
              }
              if (!cmdFound) {
                cmdFound = this.parseBackgroundAttributes(a, b)
              }
              if (!cmdFound) {
                charsFound = this.parseChars(a, b)
                if (charsFound) {
                  if (this.currChNr && this.currChNr >= 0) {
                    var channel = this.channels[this.currChNr - 1]
                    channel.insertChars(charsFound)
                  } else {
                    logger.log('WARNING', 'No channel found yet. TEXT-MODE?')
                  }
                }
              }
              if (cmdFound) {
                this.dataCounters.cmd += 2
              } else if (charsFound) {
                this.dataCounters.char += 2
              } else {
                this.dataCounters.other += 2
                logger.log('WARNING', 'Couldn\'t parse cleaned data ' + numArrayToHexArray([a, b]) + ' orig: ' + numArrayToHexArray([byteList[i], byteList[i + 1]]))
              }
            }
          }

          /**
         * Parse Command.
         * @returns {Boolean} Tells if a command was found
         */

        }, {
          key: 'parseCmd',
          value: function parseCmd (a, b) {
            var chNr = null

            var cond1 = (a === 0x14 || a === 0x1C) && b >= 0x20 && b <= 0x2F
            var cond2 = (a === 0x17 || a === 0x1F) && b >= 0x21 && b <= 0x23
            if (!(cond1 || cond2)) {
              return false
            }

            if (a === this.lastCmdA && b === this.lastCmdB) {
              this.lastCmdA = null
              this.lastCmdB = null // Repeated commands are dropped (once)
              logger.log('DEBUG', 'Repeated command (' + numArrayToHexArray([a, b]) + ') is dropped')
              return true
            }

            if (a === 0x14 || a === 0x17) {
              chNr = 1
            } else {
              chNr = 2 // (a === 0x1C || a=== 0x1f)
            }

            var channel = this.channels[chNr - 1]

            if (a === 0x14 || a === 0x1C) {
              if (b === 0x20) {
                channel.ccRCL()
              } else if (b === 0x21) {
                channel.ccBS()
              } else if (b === 0x22) {
                channel.ccAOF()
              } else if (b === 0x23) {
                channel.ccAON()
              } else if (b === 0x24) {
                channel.ccDER()
              } else if (b === 0x25) {
                channel.ccRU(2)
              } else if (b === 0x26) {
                channel.ccRU(3)
              } else if (b === 0x27) {
                channel.ccRU(4)
              } else if (b === 0x28) {
                channel.ccFON()
              } else if (b === 0x29) {
                channel.ccRDC()
              } else if (b === 0x2A) {
                channel.ccTR()
              } else if (b === 0x2B) {
                channel.ccRTD()
              } else if (b === 0x2C) {
                channel.ccEDM()
              } else if (b === 0x2D) {
                channel.ccCR()
              } else if (b === 0x2E) {
                channel.ccENM()
              } else if (b === 0x2F) {
                channel.ccEOC()
              }
            } else {
            // a == 0x17 || a == 0x1F
              channel.ccTO(b - 0x20)
            }
            this.lastCmdA = a
            this.lastCmdB = b
            this.currChNr = chNr
            return true
          }

          /**
         * Parse midrow styling command
         * @returns {Boolean}
         */

        }, {
          key: 'parseMidrow',
          value: function parseMidrow (a, b) {
            var chNr = null

            if ((a === 0x11 || a === 0x19) && b >= 0x20 && b <= 0x2f) {
              if (a === 0x11) {
                chNr = 1
              } else {
                chNr = 2
              }
              if (chNr !== this.currChNr) {
                logger.log('ERROR', 'Mismatch channel in midrow parsing')
                return false
              }
              var channel = this.channels[chNr - 1]
              channel.ccMIDROW(b)
              logger.log('DEBUG', 'MIDROW (' + numArrayToHexArray([a, b]) + ')')
              return true
            }
            return false
          }
          /**
         * Parse Preable Access Codes (Table 53).
         * @returns {Boolean} Tells if PAC found
         */

        }, {
          key: 'parsePAC',
          value: function parsePAC (a, b) {
            var chNr = null
            var row = null

            var case1 = (a >= 0x11 && a <= 0x17 || a >= 0x19 && a <= 0x1F) && b >= 0x40 && b <= 0x7F
            var case2 = (a === 0x10 || a === 0x18) && b >= 0x40 && b <= 0x5F
            if (!(case1 || case2)) {
              return false
            }

            if (a === this.lastCmdA && b === this.lastCmdB) {
              this.lastCmdA = null
              this.lastCmdB = null
              return true // Repeated commands are dropped (once)
            }

            chNr = a <= 0x17 ? 1 : 2

            if (b >= 0x40 && b <= 0x5F) {
              row = chNr === 1 ? rowsLowCh1[a] : rowsLowCh2[a]
            } else {
            // 0x60 <= b <= 0x7F
              row = chNr === 1 ? rowsHighCh1[a] : rowsHighCh2[a]
            }
            var pacData = this.interpretPAC(row, b)
            var channel = this.channels[chNr - 1]
            channel.setPAC(pacData)
            this.lastCmdA = a
            this.lastCmdB = b
            this.currChNr = chNr
            return true
          }

          /**
         * Interpret the second byte of the pac, and return the information.
         * @returns {Object} pacData with style parameters.
         */

        }, {
          key: 'interpretPAC',
          value: function interpretPAC (row, byte) {
            var pacIndex = byte
            var pacData = { color: null, italics: false, indent: null, underline: false, row: row }

            if (byte > 0x5F) {
              pacIndex = byte - 0x60
            } else {
              pacIndex = byte - 0x40
            }
            pacData.underline = (pacIndex & 1) === 1
            if (pacIndex <= 0xd) {
              pacData.color = ['white', 'green', 'blue', 'cyan', 'red', 'yellow', 'magenta', 'white'][Math.floor(pacIndex / 2)]
            } else if (pacIndex <= 0xf) {
              pacData.italics = true
              pacData.color = 'white'
            } else {
              pacData.indent = Math.floor((pacIndex - 0x10) / 2) * 4
            }
            return pacData // Note that row has zero offset. The spec uses 1.
          }

          /**
         * Parse characters.
         * @returns An array with 1 to 2 codes corresponding to chars, if found. null otherwise.
         */

        }, {
          key: 'parseChars',
          value: function parseChars (a, b) {
            var channelNr = null
            var charCodes = null
            var charCode1 = null

            if (a >= 0x19) {
              channelNr = 2
              charCode1 = a - 8
            } else {
              channelNr = 1
              charCode1 = a
            }
            if (charCode1 >= 0x11 && charCode1 <= 0x13) {
            // Special character
              var oneCode = b
              if (charCode1 === 0x11) {
                oneCode = b + 0x50
              } else if (charCode1 === 0x12) {
                oneCode = b + 0x70
              } else {
                oneCode = b + 0x90
              }
              logger.log('INFO', 'Special char \'' + getCharForByte(oneCode) + '\' in channel ' + channelNr)
              charCodes = [oneCode]
            } else if (a >= 0x20 && a <= 0x7f) {
              charCodes = b === 0 ? [a] : [a, b]
            }
            if (charCodes) {
              var hexCodes = numArrayToHexArray(charCodes)
              logger.log('DEBUG', 'Char codes =  ' + hexCodes.join(','))
              this.lastCmdA = null
              this.lastCmdB = null
            }
            return charCodes
          }

          /**
        * Parse extended background attributes as well as new foreground color black.
        * @returns{Boolean} Tells if background attributes are found
        */

        }, {
          key: 'parseBackgroundAttributes',
          value: function parseBackgroundAttributes (a, b) {
            var bkgData, index, chNr, channel

            var case1 = (a === 0x10 || a === 0x18) && b >= 0x20 && b <= 0x2f
            var case2 = (a === 0x17 || a === 0x1f) && b >= 0x2d && b <= 0x2f
            if (!(case1 || case2)) {
              return false
            }
            bkgData = {}
            if (a === 0x10 || a === 0x18) {
              index = Math.floor((b - 0x20) / 2)
              bkgData.background = backgroundColors[index]
              if (b % 2 === 1) {
                bkgData.background = bkgData.background + '_semi'
              }
            } else if (b === 0x2d) {
              bkgData.background = 'transparent'
            } else {
              bkgData.foreground = 'black'
              if (b === 0x2f) {
                bkgData.underline = true
              }
            }
            chNr = a < 0x18 ? 1 : 2
            channel = this.channels[chNr - 1]
            channel.setBkgData(bkgData)
            this.lastCmdA = null
            this.lastCmdB = null
            return true
          }

          /**
         * Reset state of parser and its channels.
         */

        }, {
          key: 'reset',
          value: function reset () {
            for (var i = 0; i < this.channels.length; i++) {
              if (this.channels[i]) {
                this.channels[i].reset()
              }
            }
            this.lastCmdA = null
            this.lastCmdB = null
          }

          /**
         * Trigger the generation of a cue, and the start of a new one if displayScreens are not empty.
         */

        }, {
          key: 'cueSplitAtTime',
          value: function cueSplitAtTime (t) {
            for (var i = 0; i < this.channels.length; i++) {
              if (this.channels[i]) {
                this.channels[i].cueSplitAtTime(t)
              }
            }
          }
        }])

        return Cea608Parser
      }())

      exports.default = Cea608Parser
    }, {}],
    47: [function (_dereq_, module, exports) {
      'use strict'

      var _vttparser = _dereq_(53)

      var Cues = {

        newCue: function newCue (track, startTime, endTime, captionScreen) {
          var row
          var cue
          var indenting
          var indent
          var text
          var VTTCue = window.VTTCue || window.TextTrackCue

          for (var r = 0; r < captionScreen.rows.length; r++) {
            row = captionScreen.rows[r]
            indenting = true
            indent = 0
            text = ''

            if (!row.isEmpty()) {
              for (var c = 0; c < row.chars.length; c++) {
                if (row.chars[c].uchar.match(/\s/) && indenting) {
                  indent++
                } else {
                  text += row.chars[c].uchar
                  indenting = false
                }
              }
              // To be used for cleaning-up orphaned roll-up captions
              row.cueStartTime = startTime

              // Give a slight bump to the endTime if it's equal to startTime to avoid a SyntaxError in IE
              if (startTime === endTime) {
                endTime += 0.0001
              }

              cue = new VTTCue(startTime, endTime, (0, _vttparser.fixLineBreaks)(text.trim()))

              if (indent >= 16) {
                indent--
              } else {
                indent++
              }

              // VTTCue.line get's flakey when using controls, so let's now include line 13&14
              // also, drop line 1 since it's to close to the top
              if (navigator.userAgent.match(/Firefox\//)) {
                cue.line = r + 1
              } else {
                cue.line = r > 7 ? r - 2 : r + 1
              }
              cue.align = 'left'
              // Clamp the position between 0 and 100 - if out of these bounds, Firefox throws an exception and captions break
              cue.position = Math.max(0, Math.min(100, 100 * (indent / 32) + (navigator.userAgent.match(/Firefox\//) ? 50 : 0)))
              track.addCue(cue)
            }
          }
        }

      }

      module.exports = Cues
    }, { 53: 53 }],
    48: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }()) /*
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * EWMA Bandwidth Estimator
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      *  - heavily inspired from shaka-player
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * Tracks bandwidth samples and estimates available bandwidth.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * Based on the minimum of two exponentially-weighted moving averages with
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * different half-lives.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      */

      var _ewma = _dereq_(49)

      var _ewma2 = _interopRequireDefault(_ewma)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      var EwmaBandWidthEstimator = (function () {
        function EwmaBandWidthEstimator (hls, slow, fast, defaultEstimate) {
          _classCallCheck(this, EwmaBandWidthEstimator)

          this.hls = hls
          this.defaultEstimate_ = defaultEstimate
          this.minWeight_ = 0.001
          this.minDelayMs_ = 50
          this.slow_ = new _ewma2.default(slow)
          this.fast_ = new _ewma2.default(fast)
        }

        _createClass(EwmaBandWidthEstimator, [{
          key: 'sample',
          value: function sample (durationMs, numBytes) {
            durationMs = Math.max(durationMs, this.minDelayMs_)
            var bandwidth = 8000 * numBytes / durationMs

            // console.log('instant bw:'+ Math.round(bandwidth));
            // we weight sample using loading duration....
            var weight = durationMs / 1000
            this.fast_.sample(weight, bandwidth)
            this.slow_.sample(weight, bandwidth)
          }
        }, {
          key: 'canEstimate',
          value: function canEstimate () {
            var fast = this.fast_
            return fast && fast.getTotalWeight() >= this.minWeight_
          }
        }, {
          key: 'getEstimate',
          value: function getEstimate () {
            if (this.canEstimate()) {
            // console.log('slow estimate:'+ Math.round(this.slow_.getEstimate()));
            // console.log('fast estimate:'+ Math.round(this.fast_.getEstimate()));
            // Take the minimum of these two estimates.  This should have the effect of
            // adapting down quickly, but up more slowly.
              return Math.min(this.fast_.getEstimate(), this.slow_.getEstimate())
            } else {
              return this.defaultEstimate_
            }
          }
        }, {
          key: 'destroy',
          value: function destroy () {}
        }])

        return EwmaBandWidthEstimator
      }())

      exports.default = EwmaBandWidthEstimator
    }, { 49: 49 }],
    49: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }())

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      /*
 * compute an Exponential Weighted moving average
 * - https://en.wikipedia.org/wiki/Moving_average#Exponential_moving_average
 *  - heavily inspired from shaka-player
 */

      var EWMA = (function () {
        //  About half of the estimated value will be from the last |halfLife| samples by weight.
        function EWMA (halfLife) {
          _classCallCheck(this, EWMA)

          // Larger values of alpha expire historical data more slowly.
          this.alpha_ = halfLife ? Math.exp(Math.log(0.5) / halfLife) : 0
          this.estimate_ = 0
          this.totalWeight_ = 0
        }

        _createClass(EWMA, [{
          key: 'sample',
          value: function sample (weight, value) {
            var adjAlpha = Math.pow(this.alpha_, weight)
            this.estimate_ = value * (1 - adjAlpha) + adjAlpha * this.estimate_
            this.totalWeight_ += weight
          }
        }, {
          key: 'getTotalWeight',
          value: function getTotalWeight () {
            return this.totalWeight_
          }
        }, {
          key: 'getEstimate',
          value: function getEstimate () {
            if (this.alpha_) {
              var zeroFactor = 1 - Math.pow(this.alpha_, this.totalWeight_)
              return this.estimate_ / zeroFactor
            } else {
              return this.estimate_
            }
          }
        }])

        return EWMA
      }())

      exports.default = EWMA
    }, {}],
    50: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _typeof = typeof Symbol === 'function' && typeof Symbol.iterator === 'symbol' ? function (obj) { return typeof obj } : function (obj) { return obj && typeof Symbol === 'function' && obj.constructor === Symbol && obj !== Symbol.prototype ? 'symbol' : typeof obj }

      function noop () {}

      var fakeLogger = {
        trace: noop,
        debug: noop,
        log: noop,
        warn: noop,
        info: noop,
        error: noop
      }

      var exportedLogger = fakeLogger

      /* globals self: false */

      // let lastCallTime;
      // function formatMsgWithTimeInfo(type, msg) {
      //   const now = Date.now();
      //   const diff = lastCallTime ? '+' + (now - lastCallTime) : '0';
      //   lastCallTime = now;
      //   msg = (new Date(now)).toISOString() + ' | [' +  type + '] > ' + msg + ' ( ' + diff + ' ms )';
      //   return msg;
      // }

      function formatMsg (type, msg) {
        msg = '[' + type + '] > ' + msg
        return msg
      }

      function consolePrintFn (type) {
        var func = self.console[type]
        if (func) {
          return function () {
            for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
              args[_key] = arguments[_key]
            }

            if (args[0]) {
              args[0] = formatMsg(type, args[0])
            }
            func.apply(self.console, args)
          }
        }
        return noop
      }

      function exportLoggerFunctions (debugConfig) {
        for (var _len2 = arguments.length, functions = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
          functions[_key2 - 1] = arguments[_key2]
        }

        functions.forEach(function (type) {
          exportedLogger[type] = debugConfig[type] ? debugConfig[type].bind(debugConfig) : consolePrintFn(type)
        })
      }

      var enableLogs = exports.enableLogs = function enableLogs (debugConfig) {
        if (debugConfig === true || (typeof debugConfig === 'undefined' ? 'undefined' : _typeof(debugConfig)) === 'object') {
          exportLoggerFunctions(debugConfig,
            // Remove out from list here to hard-disable a log-level
            // 'trace',
            'debug', 'log', 'info', 'warn', 'error')
          // Some browsers don't allow to use bind on console object anyway
          // fallback to default if needed
          try {
            exportedLogger.log()
          } catch (e) {
            exportedLogger = fakeLogger
          }
        } else {
          exportedLogger = fakeLogger
        }
      }

      var logger = exports.logger = exportedLogger
    }, {}],
    51: [function (_dereq_, module, exports) {
      'use strict'

      /**
 *  TimeRanges to string helper
 */

      var TimeRanges = {
        toString: function toString (r) {
          var log = ''
          var len = r.length
          for (var i = 0; i < len; i++) {
            log += '[' + r.start(i).toFixed(3) + ',' + r.end(i).toFixed(3) + ']'
          }
          return log
        }
      }

      module.exports = TimeRanges
    }, {}],
    52: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      /**
 * Copyright 2013 vtt.js Contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

      exports.default = (function () {
        if (typeof window !== 'undefined' && window.VTTCue) {
          return window.VTTCue
        }

        var autoKeyword = 'auto'
        var directionSetting = {
          '': true,
          lr: true,
          rl: true
        }
        var alignSetting = {
          start: true,
          middle: true,
          end: true,
          left: true,
          right: true
        }

        function findDirectionSetting (value) {
          if (typeof value !== 'string') {
            return false
          }
          var dir = directionSetting[value.toLowerCase()]
          return dir ? value.toLowerCase() : false
        }

        function findAlignSetting (value) {
          if (typeof value !== 'string') {
            return false
          }
          var align = alignSetting[value.toLowerCase()]
          return align ? value.toLowerCase() : false
        }

        function extend (obj) {
          var i = 1
          for (; i < arguments.length; i++) {
            var cobj = arguments[i]
            for (var p in cobj) {
              obj[p] = cobj[p]
            }
          }

          return obj
        }

        function VTTCue (startTime, endTime, text) {
          var cue = this
          var isIE8 = (function () {
            if (typeof navigator === 'undefined') {
              return
            }
            return (/MSIE\s8\.0/.test(navigator.userAgent)
            )
          }())
          var baseObj = {}

          if (isIE8) {
            cue = document.createElement('custom')
          } else {
            baseObj.enumerable = true
          }

          /**
     * Shim implementation specific properties. These properties are not in
     * the spec.
     */

          // Lets us know when the VTTCue's data has changed in such a way that we need
          // to recompute its display state. This lets us compute its display state
          // lazily.
          cue.hasBeenReset = false

          /**
     * VTTCue and TextTrackCue properties
     * http://dev.w3.org/html5/webvtt/#vttcue-interface
     */

          var _id = ''
          var _pauseOnExit = false
          var _startTime = startTime
          var _endTime = endTime
          var _text = text
          var _region = null
          var _vertical = ''
          var _snapToLines = true
          var _line = 'auto'
          var _lineAlign = 'start'
          var _position = 50
          var _positionAlign = 'middle'
          var _size = 50
          var _align = 'middle'

          Object.defineProperty(cue, 'id', extend({}, baseObj, {
            get: function get () {
              return _id
            },
            set: function set (value) {
              _id = '' + value
            }
          }))

          Object.defineProperty(cue, 'pauseOnExit', extend({}, baseObj, {
            get: function get () {
              return _pauseOnExit
            },
            set: function set (value) {
              _pauseOnExit = !!value
            }
          }))

          Object.defineProperty(cue, 'startTime', extend({}, baseObj, {
            get: function get () {
              return _startTime
            },
            set: function set (value) {
              if (typeof value !== 'number') {
                throw new TypeError('Start time must be set to a number.')
              }
              _startTime = value
              this.hasBeenReset = true
            }
          }))

          Object.defineProperty(cue, 'endTime', extend({}, baseObj, {
            get: function get () {
              return _endTime
            },
            set: function set (value) {
              if (typeof value !== 'number') {
                throw new TypeError('End time must be set to a number.')
              }
              _endTime = value
              this.hasBeenReset = true
            }
          }))

          Object.defineProperty(cue, 'text', extend({}, baseObj, {
            get: function get () {
              return _text
            },
            set: function set (value) {
              _text = '' + value
              this.hasBeenReset = true
            }
          }))

          Object.defineProperty(cue, 'region', extend({}, baseObj, {
            get: function get () {
              return _region
            },
            set: function set (value) {
              _region = value
              this.hasBeenReset = true
            }
          }))

          Object.defineProperty(cue, 'vertical', extend({}, baseObj, {
            get: function get () {
              return _vertical
            },
            set: function set (value) {
              var setting = findDirectionSetting(value)
              // Have to check for false because the setting an be an empty string.
              if (setting === false) {
                throw new SyntaxError('An invalid or illegal string was specified.')
              }
              _vertical = setting
              this.hasBeenReset = true
            }
          }))

          Object.defineProperty(cue, 'snapToLines', extend({}, baseObj, {
            get: function get () {
              return _snapToLines
            },
            set: function set (value) {
              _snapToLines = !!value
              this.hasBeenReset = true
            }
          }))

          Object.defineProperty(cue, 'line', extend({}, baseObj, {
            get: function get () {
              return _line
            },
            set: function set (value) {
              if (typeof value !== 'number' && value !== autoKeyword) {
                throw new SyntaxError('An invalid number or illegal string was specified.')
              }
              _line = value
              this.hasBeenReset = true
            }
          }))

          Object.defineProperty(cue, 'lineAlign', extend({}, baseObj, {
            get: function get () {
              return _lineAlign
            },
            set: function set (value) {
              var setting = findAlignSetting(value)
              if (!setting) {
                throw new SyntaxError('An invalid or illegal string was specified.')
              }
              _lineAlign = setting
              this.hasBeenReset = true
            }
          }))

          Object.defineProperty(cue, 'position', extend({}, baseObj, {
            get: function get () {
              return _position
            },
            set: function set (value) {
              if (value < 0 || value > 100) {
                throw new Error('Position must be between 0 and 100.')
              }
              _position = value
              this.hasBeenReset = true
            }
          }))

          Object.defineProperty(cue, 'positionAlign', extend({}, baseObj, {
            get: function get () {
              return _positionAlign
            },
            set: function set (value) {
              var setting = findAlignSetting(value)
              if (!setting) {
                throw new SyntaxError('An invalid or illegal string was specified.')
              }
              _positionAlign = setting
              this.hasBeenReset = true
            }
          }))

          Object.defineProperty(cue, 'size', extend({}, baseObj, {
            get: function get () {
              return _size
            },
            set: function set (value) {
              if (value < 0 || value > 100) {
                throw new Error('Size must be between 0 and 100.')
              }
              _size = value
              this.hasBeenReset = true
            }
          }))

          Object.defineProperty(cue, 'align', extend({}, baseObj, {
            get: function get () {
              return _align
            },
            set: function set (value) {
              var setting = findAlignSetting(value)
              if (!setting) {
                throw new SyntaxError('An invalid or illegal string was specified.')
              }
              _align = setting
              this.hasBeenReset = true
            }
          }))

          /**
     * Other <track> spec defined properties
     */

          // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#text-track-cue-display-state
          cue.displayState = undefined

          if (isIE8) {
            return cue
          }
        }

        /**
   * VTTCue methods
   */

        VTTCue.prototype.getCueAsHTML = function () {
        // Assume WebVTT.convertCueToDOMTree is on the global.
          var WebVTT = window.WebVTT
          return WebVTT.convertCueToDOMTree(window, this.text)
        }

        return VTTCue
      }())
    }, {}],
    53: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })
      exports.fixLineBreaks = undefined

      var _vttcue = _dereq_(52)

      var _vttcue2 = _interopRequireDefault(_vttcue)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      var StringDecoder = function StringDecoder () {
        return {
          decode: function decode (data) {
            if (!data) {
              return ''
            }
            if (typeof data !== 'string') {
              throw new Error('Error - expected string data.')
            }
            return decodeURIComponent(encodeURIComponent(data))
          }
        }
      } /*
    * Source: https://github.com/mozilla/vtt.js/blob/master/dist/vtt.js#L1716
    */

      function VTTParser () {
        this.window = window
        this.state = 'INITIAL'
        this.buffer = ''
        this.decoder = new StringDecoder()
        this.regionList = []
      }

      // Try to parse input as a time stamp.
      function parseTimeStamp (input) {
        function computeSeconds (h, m, s, f) {
          return (h | 0) * 3600 + (m | 0) * 60 + (s | 0) + (f | 0) / 1000
        }

        var m = input.match(/^(\d+):(\d{2})(:\d{2})?\.(\d{3})/)
        if (!m) {
          return null
        }

        if (m[3]) {
        // Timestamp takes the form of [hours]:[minutes]:[seconds].[milliseconds]
          return computeSeconds(m[1], m[2], m[3].replace(':', ''), m[4])
        } else if (m[1] > 59) {
        // Timestamp takes the form of [hours]:[minutes].[milliseconds]
        // First position is hours as it's over 59.
          return computeSeconds(m[1], m[2], 0, m[4])
        } else {
        // Timestamp takes the form of [minutes]:[seconds].[milliseconds]
          return computeSeconds(0, m[1], m[2], m[4])
        }
      }

      // A settings object holds key/value pairs and will ignore anything but the first
      // assignment to a specific key.
      function Settings () {
        this.values = Object.create(null)
      }

      Settings.prototype = {
      // Only accept the first assignment to any key.
        set: function set (k, v) {
          if (!this.get(k) && v !== '') {
            this.values[k] = v
          }
        },
        // Return the value for a key, or a default value.
        // If 'defaultKey' is passed then 'dflt' is assumed to be an object with
        // a number of possible default values as properties where 'defaultKey' is
        // the key of the property that will be chosen; otherwise it's assumed to be
        // a single value.
        get: function get (k, dflt, defaultKey) {
          if (defaultKey) {
            return this.has(k) ? this.values[k] : dflt[defaultKey]
          }
          return this.has(k) ? this.values[k] : dflt
        },
        // Check whether we have a value for a key.
        has: function has (k) {
          return k in this.values
        },
        // Accept a setting if its one of the given alternatives.
        alt: function alt (k, v, a) {
          for (var n = 0; n < a.length; ++n) {
            if (v === a[n]) {
              this.set(k, v)
              break
            }
          }
        },
        // Accept a setting if its a valid (signed) integer.
        integer: function integer (k, v) {
          if (/^-?\d+$/.test(v)) {
          // integer
            this.set(k, parseInt(v, 10))
          }
        },
        // Accept a setting if its a valid percentage.
        percent: function percent (k, v) {
          var m
          if (m = v.match(/^([\d]{1,3})(\.[\d]*)?%$/)) {
            v = parseFloat(v)
            if (v >= 0 && v <= 100) {
              this.set(k, v)
              return true
            }
          }
          return false
        }
      }

      // Helper function to parse input into groups separated by 'groupDelim', and
      // interprete each group as a key/value pair separated by 'keyValueDelim'.
      function parseOptions (input, callback, keyValueDelim, groupDelim) {
        var groups = groupDelim ? input.split(groupDelim) : [input]
        for (var i in groups) {
          if (typeof groups[i] !== 'string') {
            continue
          }
          var kv = groups[i].split(keyValueDelim)
          if (kv.length !== 2) {
            continue
          }
          var k = kv[0]
          var v = kv[1]
          callback(k, v)
        }
      }

      var defaults = new _vttcue2.default(0, 0, 0)
      // 'middle' was changed to 'center' in the spec: https://github.com/w3c/webvtt/pull/244
      // Chrome and Safari don't yet support this change, but FF does
      var center = defaults.align === 'middle' ? 'middle' : 'center'

      function parseCue (input, cue, regionList) {
      // Remember the original input if we need to throw an error.
        var oInput = input
        // 4.1 WebVTT timestamp
        function consumeTimeStamp () {
          var ts = parseTimeStamp(input)
          if (ts === null) {
            throw new Error('Malformed timestamp: ' + oInput)
          }
          // Remove time stamp from input.
          input = input.replace(/^[^\sa-zA-Z-]+/, '')
          return ts
        }

        // 4.4.2 WebVTT cue settings
        function consumeCueSettings (input, cue) {
          var settings = new Settings()

          parseOptions(input, function (k, v) {
            switch (k) {
              case 'region':
              // Find the last region we parsed with the same region id.
                for (var i = regionList.length - 1; i >= 0; i--) {
                  if (regionList[i].id === v) {
                    settings.set(k, regionList[i].region)
                    break
                  }
                }
                break
              case 'vertical':
                settings.alt(k, v, ['rl', 'lr'])
                break
              case 'line':
                var vals = v.split(',')
                var vals0 = vals[0]
                settings.integer(k, vals0)
                if (settings.percent(k, vals0)) {
                  settings.set('snapToLines', false)
                }
                settings.alt(k, vals0, ['auto'])
                if (vals.length === 2) {
                  settings.alt('lineAlign', vals[1], ['start', center, 'end'])
                }
                break
              case 'position':
                vals = v.split(',')
                settings.percent(k, vals[0])
                if (vals.length === 2) {
                  settings.alt('positionAlign', vals[1], ['start', center, 'end', 'line-left', 'line-right', 'auto'])
                }
                break
              case 'size':
                settings.percent(k, v)
                break
              case 'align':
                settings.alt(k, v, ['start', center, 'end', 'left', 'right'])
                break
            }
          }, /:/, /\s/)

          // Apply default values for any missing fields.
          cue.region = settings.get('region', null)
          cue.vertical = settings.get('vertical', '')
          var line = settings.get('line', 'auto')
          if (line === 'auto' && defaults.line === -1) {
          // set numeric line number for Safari
            line = -1
          }
          cue.line = line
          cue.lineAlign = settings.get('lineAlign', 'start')
          cue.snapToLines = settings.get('snapToLines', true)
          cue.size = settings.get('size', 100)
          cue.align = settings.get('align', center)
          var position = settings.get('position', 'auto')
          if (position === 'auto' && defaults.position === 50) {
          // set numeric position for Safari
            position = cue.align === 'start' || cue.align === 'left' ? 0 : cue.align === 'end' || cue.align === 'right' ? 100 : 50
          }
          cue.position = position
        }

        function skipWhitespace () {
          input = input.replace(/^\s+/, '')
        }

        // 4.1 WebVTT cue timings.
        skipWhitespace()
        cue.startTime = consumeTimeStamp() // (1) collect cue start time
        skipWhitespace()
        if (input.substr(0, 3) !== '-->') {
        // (3) next characters must match '-->'
          throw new Error('Malformed time stamp (time stamps must be separated by \'-->\'): ' + oInput)
        }
        input = input.substr(3)
        skipWhitespace()
        cue.endTime = consumeTimeStamp() // (5) collect cue end time

        // 4.1 WebVTT cue settings list.
        skipWhitespace()
        consumeCueSettings(input, cue)
      }

      function fixLineBreaks (input) {
        return input.replace(/<br(?: \/)?>/gi, '\n')
      }

      VTTParser.prototype = {
        parse: function parse (data) {
          var self = this

          // If there is no data then we won't decode it, but will just try to parse
          // whatever is in buffer already. This may occur in circumstances, for
          // example when flush() is called.
          if (data) {
          // Try to decode the data that we received.
            self.buffer += self.decoder.decode(data, { stream: true })
          }

          function collectNextLine () {
            var buffer = self.buffer
            var pos = 0

            buffer = fixLineBreaks(buffer)

            while (pos < buffer.length && buffer[pos] !== '\r' && buffer[pos] !== '\n') {
              ++pos
            }
            var line = buffer.substr(0, pos)
            // Advance the buffer early in case we fail below.
            if (buffer[pos] === '\r') {
              ++pos
            }
            if (buffer[pos] === '\n') {
              ++pos
            }
            self.buffer = buffer.substr(pos)
            return line
          }

          // 3.2 WebVTT metadata header syntax
          function parseHeader (input) {
            parseOptions(input, function (k, v) {
              switch (k) {
                case 'Region':
                // 3.3 WebVTT region metadata header syntax
                  console.log('parse region', v)
                  // parseRegion(v);
                  break
              }
            }, /:/)
          }

          // 5.1 WebVTT file parsing.
          try {
            var line
            if (self.state === 'INITIAL') {
            // We can't start parsing until we have the first line.
              if (!/\r\n|\n/.test(self.buffer)) {
                return this
              }

              line = collectNextLine()

              var m = line.match(/^WEBVTT([ \t].*)?$/)
              if (!m || !m[0]) {
                throw new Error('Malformed WebVTT signature.')
              }

              self.state = 'HEADER'
            }

            var alreadyCollectedLine = false
            while (self.buffer) {
            // We can't parse a line until we have the full line.
              if (!/\r\n|\n/.test(self.buffer)) {
                return this
              }

              if (!alreadyCollectedLine) {
                line = collectNextLine()
              } else {
                alreadyCollectedLine = false
              }

              switch (self.state) {
                case 'HEADER':
                // 13-18 - Allow a header (metadata) under the WEBVTT line.
                  if (/:/.test(line)) {
                    parseHeader(line)
                  } else if (!line) {
                  // An empty line terminates the header and starts the body (cues).
                    self.state = 'ID'
                  }
                  continue
                case 'NOTE':
                // Ignore NOTE blocks.
                  if (!line) {
                    self.state = 'ID'
                  }
                  continue
                case 'ID':
                // Check for the start of NOTE blocks.
                  if (/^NOTE($|[ \t])/.test(line)) {
                    self.state = 'NOTE'
                    break
                  }
                  // 19-29 - Allow any number of line terminators, then initialize new cue values.
                  if (!line) {
                    continue
                  }
                  self.cue = new _vttcue2.default(0, 0, '')
                  self.state = 'CUE'
                  // 30-39 - Check if self line contains an optional identifier or timing data.
                  if (line.indexOf('-->') === -1) {
                    self.cue.id = line
                    continue
                  }
                  // Process line as start of a cue.
                  /* falls through */
                case 'CUE':
                // 40 - Collect cue timings and settings.
                  try {
                    parseCue(line, self.cue, self.regionList)
                  } catch (e) {
                  // In case of an error ignore rest of the cue.
                    self.cue = null
                    self.state = 'BADCUE'
                    continue
                  }
                  self.state = 'CUETEXT'
                  continue
                case 'CUETEXT':
                  var hasSubstring = line.indexOf('-->') !== -1
                  // 34 - If we have an empty line then report the cue.
                  // 35 - If we have the special substring '-->' then report the cue,
                  // but do not collect the line as we need to process the current
                  // one as a new cue.
                  if (!line || hasSubstring && (alreadyCollectedLine = true)) {
                  // We are done parsing self cue.
                    if (self.oncue) {
                      self.oncue(self.cue)
                    }
                    self.cue = null
                    self.state = 'ID'
                    continue
                  }
                  if (self.cue.text) {
                    self.cue.text += '\n'
                  }
                  self.cue.text += line
                  continue
                case 'BADCUE':
                // BADCUE
                // 54-62 - Collect and discard the remaining cue.
                  if (!line) {
                    self.state = 'ID'
                  }
                  continue
              }
            }
          } catch (e) {
          // If we are currently parsing a cue, report what we have.
            if (self.state === 'CUETEXT' && self.cue && self.oncue) {
              self.oncue(self.cue)
            }
            self.cue = null
            // Enter BADWEBVTT state if header was not parsed correctly otherwise
            // another exception occurred so enter BADCUE state.
            self.state = self.state === 'INITIAL' ? 'BADWEBVTT' : 'BADCUE'
          }
          return this
        },
        flush: function flush () {
          var self = this
          try {
          // Finish decoding the stream.
            self.buffer += self.decoder.decode()
            // Synthesize the end of the current cue or region.
            if (self.cue || self.state === 'HEADER') {
              self.buffer += '\n\n'
              self.parse()
            }
            // If we've flushed, parsed, and we're still on the INITIAL state then
            // that means we don't have enough of the stream to parse the first
            // line.
            if (self.state === 'INITIAL') {
              throw new Error('Malformed WebVTT signature.')
            }
          } catch (e) {
            throw e
          }
          if (self.onflush) {
            self.onflush()
          }
          return this
        }
      }

      exports.fixLineBreaks = fixLineBreaks
      exports.default = VTTParser
    }, { 52: 52 }],
    54: [function (_dereq_, module, exports) {
      'use strict'

      var _vttparser = _dereq_(53)

      var _vttparser2 = _interopRequireDefault(_vttparser)

      function _interopRequireDefault (obj) { return obj && obj.__esModule ? obj : { default: obj } }

      var cueString2millis = function cueString2millis (timeString) {
        var ts = parseInt(timeString.substr(-3))
        var secs = parseInt(timeString.substr(-6, 2))
        var mins = parseInt(timeString.substr(-9, 2))
        var hours = timeString.length > 9 ? parseInt(timeString.substr(0, timeString.indexOf(':'))) : 0

        if (isNaN(ts) || isNaN(secs) || isNaN(mins) || isNaN(hours)) {
          return -1
        }

        ts += 1000 * secs
        ts += 60 * 1000 * mins
        ts += 60 * 60 * 1000 * hours

        return ts
      }

      var calculateOffset = function calculateOffset (vttCCs, cc, presentationTime) {
        var currCC = vttCCs[cc]
        var prevCC = vttCCs[currCC.prevCC]

        // This is the first discontinuity or cues have been processed since the last discontinuity
        // Offset = current discontinuity time
        if (!prevCC || !prevCC.new && currCC.new) {
          vttCCs.ccOffset = vttCCs.presentationOffset = currCC.start
          currCC.new = false
          return
        }

        // There have been discontinuities since cues were last parsed.
        // Offset = time elapsed
        while (prevCC && prevCC.new) {
          vttCCs.ccOffset += currCC.start - prevCC.start
          currCC.new = false
          currCC = prevCC
          prevCC = vttCCs[currCC.prevCC]
        }

        vttCCs.presentationOffset = presentationTime
      }

      var WebVTTParser = {
        parse: function parse (vttByteArray, syncPTS, vttCCs, cc, callBack, errorCallBack) {
          // Convert byteArray into string, replacing any somewhat exotic linefeeds with "\n", then split on that character.
          var re = /\r\n|\n\r|\n|\r/g
          var vttLines = String.fromCharCode.apply(null, new Uint8Array(vttByteArray)).trim().replace(re, '\n').split('\n')
          var cueTime = '00:00.000'
          var mpegTs = 0
          var localTime = 0
          var presentationTime = 0
          var cues = []
          var parsingError = void 0
          var inHeader = true
          // let VTTCue = VTTCue || window.TextTrackCue;

          // Create parser object using VTTCue with TextTrackCue fallback on certain browsers.
          var parser = new _vttparser2.default()

          parser.oncue = function (cue) {
            // Adjust cue timing; clamp cues to start no earlier than - and drop cues that don't end after - 0 on timeline.
            var currCC = vttCCs[cc]
            var cueOffset = vttCCs.ccOffset

            // Update offsets for new discontinuities
            if (currCC && currCC.new) {
              if (localTime) {
                // When local time is provided, offset = discontinuity start time - local time
                cueOffset = vttCCs.ccOffset = currCC.start
              } else {
                calculateOffset(vttCCs, cc, presentationTime)
              }
            }

            if (presentationTime && !localTime) {
              // If we have MPEGTS but no LOCAL time, offset = presentation time + discontinuity offset
              cueOffset = presentationTime + vttCCs.ccOffset - vttCCs.presentationOffset
            }

            cue.startTime += cueOffset - localTime
            cue.endTime += cueOffset - localTime

            // Fix encoding of special characters. TODO: Test with all sorts of weird characters.
            cue.text = decodeURIComponent(escape(cue.text))
            if (cue.endTime > 0) {
              cues.push(cue)
            }
          }

          parser.onparsingerror = function (e) {
            parsingError = e
          }

          parser.onflush = function () {
            if (parsingError && errorCallBack) {
              errorCallBack(parsingError)
              return
            }
            callBack(cues)
          }

          // Go through contents line by line.
          vttLines.forEach(function (line) {
            if (inHeader) {
              // Look for X-TIMESTAMP-MAP in header.
              if (line.startsWith('X-TIMESTAMP-MAP=')) {
                // Once found, no more are allowed anyway, so stop searching.
                inHeader = false
                // Extract LOCAL and MPEGTS.
                line.substr(16).split(',').forEach(function (timestamp) {
                  if (timestamp.startsWith('LOCAL:')) {
                    cueTime = timestamp.substr(6)
                  } else if (timestamp.startsWith('MPEGTS:')) {
                    mpegTs = parseInt(timestamp.substr(7))
                  }
                })
                try {
                  // Calculate subtitle offset in milliseconds.
                  // If sync PTS is less than zero, we have a 33-bit wraparound, which is fixed by adding 2^33 = 8589934592.
                  syncPTS = syncPTS < 0 ? syncPTS + 8589934592 : syncPTS
                  // Adjust MPEGTS by sync PTS.
                  mpegTs -= syncPTS
                  // Convert cue time to seconds
                  localTime = cueString2millis(cueTime) / 1000
                  // Convert MPEGTS to seconds from 90kHz.
                  presentationTime = mpegTs / 90000

                  if (localTime === -1) {
                    parsingError = new Error('Malformed X-TIMESTAMP-MAP: ' + line)
                  }
                } catch (e) {
                  parsingError = new Error('Malformed X-TIMESTAMP-MAP: ' + line)
                }
                // Return without parsing X-TIMESTAMP-MAP line.
                return
              } else if (line === '') {
                inHeader = false
              }
            }
            // Parse line by default.
            parser.parse(line + '\n')
          })

          parser.flush()
        }
      }

      module.exports = WebVTTParser
    }, { 53: 53 }],
    55: [function (_dereq_, module, exports) {
      'use strict'

      Object.defineProperty(exports, '__esModule', {
        value: true
      })

      var _createClass = (function () { function defineProperties (target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor) } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor } }()) /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      * XHR based logger
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     */

      var _logger = _dereq_(50)

      function _classCallCheck (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function') } }

      var XhrLoader = (function () {
        function XhrLoader (config) {
          _classCallCheck(this, XhrLoader)

          if (config && config.xhrSetup) {
            this.xhrSetup = config.xhrSetup
          }
        }

        _createClass(XhrLoader, [{
          key: 'destroy',
          value: function destroy () {
            this.abort()
            this.loader = null
          }
        }, {
          key: 'abort',
          value: function abort () {
            var loader = this.loader
            if (loader && loader.readyState !== 4) {
              this.stats.aborted = true
              loader.abort()
            }

            window.clearTimeout(this.requestTimeout)
            this.requestTimeout = null
            window.clearTimeout(this.retryTimeout)
            this.retryTimeout = null
          }
        }, {
          key: 'load',
          value: function load (context, config, callbacks) {
            this.context = context
            this.config = config
            this.callbacks = callbacks
            this.stats = { trequest: performance.now(), retry: 0 }
            this.retryDelay = config.retryDelay
            this.loadInternal()
          }
        }, {
          key: 'loadInternal',
          value: function loadInternal () {
            var xhr
            var context = this.context

            if (typeof XDomainRequest !== 'undefined') {
              xhr = this.loader = new XDomainRequest()
            } else {
              xhr = this.loader = new XMLHttpRequest()
            }
            var stats = this.stats
            stats.tfirst = 0
            stats.loaded = 0
            var xhrSetup = this.xhrSetup
            if (xhrSetup) {
              try {
                xhrSetup(xhr, context.url)
              } catch (e) {
              // fix xhrSetup: (xhr, url) => {xhr.setRequestHeader("Content-Language", "test");}
              // not working, as xhr.setRequestHeader expects xhr.readyState === OPEN
                xhr.open('GET', context.url, true)
                xhrSetup(xhr, context.url)
              }
            }

            if (!xhr.readyState) {
              xhr.open('GET', context.url, true)
            }
            if (context.rangeEnd) {
              xhr.setRequestHeader('Range', 'bytes=' + context.rangeStart + '-' + (context.rangeEnd - 1))
            }
            xhr.onreadystatechange = this.readystatechange.bind(this)
            xhr.onprogress = this.loadprogress.bind(this)
            xhr.responseType = context.responseType

            // setup timeout before we perform request
            this.requestTimeout = window.setTimeout(this.loadtimeout.bind(this), this.config.timeout)
            xhr.send()
          }
        }, {
          key: 'readystatechange',
          value: function readystatechange (event) {
            var xhr = event.currentTarget
            var readyState = xhr.readyState
            var stats = this.stats
            var context = this.context
            var config = this.config

            // don't proceed if xhr has been aborted
            if (stats.aborted) {
              return
            }

            // >= HEADERS_RECEIVED
            if (readyState >= 2) {
            // clear xhr timeout and rearm it if readyState less than 4
              window.clearTimeout(this.requestTimeout)
              if (stats.tfirst === 0) {
                stats.tfirst = Math.max(performance.now(), stats.trequest)
              }
              if (readyState === 4) {
                var status = xhr.status
                // http status between 200 to 299 are all successful
                if (status >= 200 && status < 300) {
                  stats.tload = Math.max(stats.tfirst, performance.now())
                  var data = void 0
                  var len = void 0
                  if (context.responseType === 'arraybuffer') {
                    data = xhr.response
                    len = data.byteLength
                  } else {
                    data = xhr.responseText
                    len = data.length
                  }
                  stats.loaded = stats.total = len
                  var response = { url: xhr.responseURL, data: data }
                  this.callbacks.onSuccess(response, stats, context)
                } else {
                // if max nb of retries reached or if http status between 400 and 499 (such error cannot be recovered, retrying is useless), return error
                  if (stats.retry >= config.maxRetry || status >= 400 && status < 499) {
                    _logger.logger.error(status + ' while loading ' + context.url)
                    this.callbacks.onError({ code: status, text: xhr.statusText }, context)
                  } else {
                  // retry
                    _logger.logger.warn(status + ' while loading ' + context.url + ', retrying in ' + this.retryDelay + '...')
                    // aborts and resets internal state
                    this.destroy()
                    // schedule retry
                    this.retryTimeout = window.setTimeout(this.loadInternal.bind(this), this.retryDelay)
                    // set exponential backoff
                    this.retryDelay = Math.min(2 * this.retryDelay, config.maxRetryDelay)
                    stats.retry++
                  }
                }
              } else {
              // readyState >= 2 AND readyState !==4 (readyState = HEADERS_RECEIVED || LOADING) rearm timeout as xhr not finished yet
                this.requestTimeout = window.setTimeout(this.loadtimeout.bind(this), config.timeout)
              }
            }
          }
        }, {
          key: 'loadtimeout',
          value: function loadtimeout () {
            _logger.logger.warn('timeout while loading ' + this.context.url)
            this.callbacks.onTimeout(this.stats, this.context)
          }
        }, {
          key: 'loadprogress',
          value: function loadprogress (event) {
            var stats = this.stats
            stats.loaded = event.loaded
            if (event.lengthComputable) {
              stats.total = event.total
            }
            var onProgress = this.callbacks.onProgress
            if (onProgress) {
            // last args is to provide on progress data
              onProgress(stats, this.context, null)
            }
          }
        }])

        return XhrLoader
      }())

      exports.default = XhrLoader
    }, { 50: 50 }]
  }, {}, [37])(37)
})
// # sourceMappingURL=hls.js.map
